Pub Date : 2024-04-01DOI: 10.3171/2024.1.focvid23234
Zachary A. Abecassis, John I. Ogunlade, Whitney Teagle, Guilherme Barros, Christine Park, Michael R. Levitt, C. P. Hofstetter
The patient is a 22-year-old male with a history of C1 avulsion fracture causing vertebral artery compression with pseudoaneurysm and symptomatic stroke. Cerebral angiography demonstrated dynamic compression of the V3 segment of the vertebral artery due to a chronic C1 avulsion fracture. The authors utilized a full endoscopic approach with intraoperative angiography for proximal control and Doppler ultrasound to confirm adequate decompression. The surgery duration was 3 hours with blood loss < 5 ml. The patient was discharged on postoperative day 1 with no complication and has been asymptomatic since surgery. This is the first documented use of endoscopic decompression to treat this condition. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23234
{"title":"Endoscopic decompression of a C1 osteophyte causing bow hunter’s syndrome in a 22-year-old male","authors":"Zachary A. Abecassis, John I. Ogunlade, Whitney Teagle, Guilherme Barros, Christine Park, Michael R. Levitt, C. P. Hofstetter","doi":"10.3171/2024.1.focvid23234","DOIUrl":"https://doi.org/10.3171/2024.1.focvid23234","url":null,"abstract":"The patient is a 22-year-old male with a history of C1 avulsion fracture causing vertebral artery compression with pseudoaneurysm and symptomatic stroke. Cerebral angiography demonstrated dynamic compression of the V3 segment of the vertebral artery due to a chronic C1 avulsion fracture. The authors utilized a full endoscopic approach with intraoperative angiography for proximal control and Doppler ultrasound to confirm adequate decompression. The surgery duration was 3 hours with blood loss < 5 ml. The patient was discharged on postoperative day 1 with no complication and has been asymptomatic since surgery. This is the first documented use of endoscopic decompression to treat this condition. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23234","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"11 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140764242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-01DOI: 10.3171/2024.1.focvid23218
M. Mahan, Hyeun-Sung (Harrison) Kim, Laura A Snyder, R. Fessler
{"title":"Advancements in technique and technology of minimally invasive and endoscopic spine surgery","authors":"M. Mahan, Hyeun-Sung (Harrison) Kim, Laura A Snyder, R. Fessler","doi":"10.3171/2024.1.focvid23218","DOIUrl":"https://doi.org/10.3171/2024.1.focvid23218","url":null,"abstract":"","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"795 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140784129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-01DOI: 10.3171/2024.1.FOCVID23225
Dong Hwa Heo
Recently, biportal endoscopic cervical approaches have been used to treat cervical degenerative disease. Biportal endoscopic posterior cervical foraminotomy with or without discectomy has the advantage of reducing damage to the normal tissues during surgery and enhancing fast recovery after surgery. The biportal endoscopic cervical approach was performed using two portals. The first portal was an endoscopic viewing portal for the spinal endoscope, and the other portal was a working portal for using surgical instruments. The author illustrates the surgical technique of biportal endoscopic posterior cervical foraminotomy with discectomy. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23225
{"title":"Biportal endoscopic posterior cervical foraminotomy with discectomy for unilateral radicular arm pain due to cervical herniated disc","authors":"Dong Hwa Heo","doi":"10.3171/2024.1.FOCVID23225","DOIUrl":"https://doi.org/10.3171/2024.1.FOCVID23225","url":null,"abstract":"Recently, biportal endoscopic cervical approaches have been used to treat cervical degenerative disease. Biportal endoscopic posterior cervical foraminotomy with or without discectomy has the advantage of reducing damage to the normal tissues during surgery and enhancing fast recovery after surgery. The biportal endoscopic cervical approach was performed using two portals. The first portal was an endoscopic viewing portal for the spinal endoscope, and the other portal was a working portal for using surgical instruments. The author illustrates the surgical technique of biportal endoscopic posterior cervical foraminotomy with discectomy. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23225","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"88 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140763897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-01DOI: 10.3171/2024.1.FOCVID23228
Mehmet İlker Özer, Mehmet Can Ezgü, Ali Kaplan, Zeliha Çulcu Gürcan, Oğuz Kağan Demirtaş
This video article explores a case of tethered cord release through a minimally invasive biportal endoscopic approach. A 24-year-old female with chronic back pain and thigh numbness underwent surgery. The chosen approach involved biportal endoscopic technique, demonstrating precision with minimal bone excision. Preoperative imaging revealed a midline fusion defect at L5 and abnormal conus medullaris termination. The surgical procedure involved one-sided hemilaminectomy, durotomy, and careful filum terminale separation. Postoperatively, radiological exams confirmed success with minimal bone defect. Emphasizing minimal invasiveness, reduced bone excision, and muscle sparing, this technique showcased successful outcomes, enabling the patient’s rapid postoperative recovery without complications. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23228
{"title":"Surgical management of tethered spinal cord syndrome through biportal endoscopic approach: a novel technical note","authors":"Mehmet İlker Özer, Mehmet Can Ezgü, Ali Kaplan, Zeliha Çulcu Gürcan, Oğuz Kağan Demirtaş","doi":"10.3171/2024.1.FOCVID23228","DOIUrl":"https://doi.org/10.3171/2024.1.FOCVID23228","url":null,"abstract":"This video article explores a case of tethered cord release through a minimally invasive biportal endoscopic approach. A 24-year-old female with chronic back pain and thigh numbness underwent surgery. The chosen approach involved biportal endoscopic technique, demonstrating precision with minimal bone excision. Preoperative imaging revealed a midline fusion defect at L5 and abnormal conus medullaris termination. The surgical procedure involved one-sided hemilaminectomy, durotomy, and careful filum terminale separation. Postoperatively, radiological exams confirmed success with minimal bone defect. Emphasizing minimal invasiveness, reduced bone excision, and muscle sparing, this technique showcased successful outcomes, enabling the patient’s rapid postoperative recovery without complications. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23228","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"595 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140787369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-01DOI: 10.3171/2024.1.FOCVID23231
Dong Hwa Heo
Recently, biportal endoscopic transforaminal lumbar interbody fusion (TLIF) has been used to treat lumbar degenerative diseases, such as lumbar instability and spondylolisthesis. Biportal endoscopic TLIF may have the advantages of endoscopic spine approaches and minimally invasive lumbar fusion surgeries. In this biportal endoscopic TLIF, large cages similar to oblique lumbar interbody fusion (OLIF) cages have been used. Biportal endoscopic TLIF using a large cage can be successfully performed in the lower lumbar area. The author presents the surgical technique of biportal endoscopic TLIF using a large cage. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23231
{"title":"Biportal endoscopic transforaminal lumbar interbody fusion using a large cage for degenerative spondylolisthesis with stenosis","authors":"Dong Hwa Heo","doi":"10.3171/2024.1.FOCVID23231","DOIUrl":"https://doi.org/10.3171/2024.1.FOCVID23231","url":null,"abstract":"Recently, biportal endoscopic transforaminal lumbar interbody fusion (TLIF) has been used to treat lumbar degenerative diseases, such as lumbar instability and spondylolisthesis. Biportal endoscopic TLIF may have the advantages of endoscopic spine approaches and minimally invasive lumbar fusion surgeries. In this biportal endoscopic TLIF, large cages similar to oblique lumbar interbody fusion (OLIF) cages have been used. Biportal endoscopic TLIF using a large cage can be successfully performed in the lower lumbar area. The author presents the surgical technique of biportal endoscopic TLIF using a large cage. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23231","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"218 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140776076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-01DOI: 10.3171/2024.1.FOCVID23196
Duncan J. Trimble, D. Sheinberg, Joseph A. Cochran
Anterior cervical foraminotomy (ACF) is an alternative surgical option for the treatment of refractory unilateral radiculopathy due to disc herniation or spondylosis. The efficacy and adverse event rate in experienced practitioners are comparable to those of anterior cervical discectomy and fusion, total disc arthroplasty, and posterior foraminotomy. However, this technique has not been widely adopted, likely because of the proximity of the working zone and the vertebral artery. The authors present a detailed operative video of a patient successfully treated with an ACF. They also present a review of the ACF literature. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23196
{"title":"Minimally invasive anterior cervical foraminotomy for unilateral radiculopathy","authors":"Duncan J. Trimble, D. Sheinberg, Joseph A. Cochran","doi":"10.3171/2024.1.FOCVID23196","DOIUrl":"https://doi.org/10.3171/2024.1.FOCVID23196","url":null,"abstract":"Anterior cervical foraminotomy (ACF) is an alternative surgical option for the treatment of refractory unilateral radiculopathy due to disc herniation or spondylosis. The efficacy and adverse event rate in experienced practitioners are comparable to those of anterior cervical discectomy and fusion, total disc arthroplasty, and posterior foraminotomy. However, this technique has not been widely adopted, likely because of the proximity of the working zone and the vertebral artery. The authors present a detailed operative video of a patient successfully treated with an ACF. They also present a review of the ACF literature. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23196","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"247 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140792219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-01DOI: 10.3171/2024.1.focvid23230
Özkan Çeliker, Yücel Doğruel
Gunshot injuries (GSIs) to the spine constitute approximately 17% to 21% of all traumatic spinal injuries, with the cervical spine being the second most frequently affected region. There is a lack of approved algorithms for patients with GSIs to the spine. Surgical intervention is controversial; however, it is generally considered in cases involving neurological deterioration with incomplete deficit, externalized liquor fistula, instability, installed toxicity, and risk of migration. Detailed information on pediatric patients is limited, primarily due to the predominance of adult patients. This study presents the full-endoscopic removal of a bullet in the C2 vertebra of a pediatric patient. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23230
{"title":"Percutaneous full-endoscopic bullet removal from the C2 vertebra in a pediatric patient","authors":"Özkan Çeliker, Yücel Doğruel","doi":"10.3171/2024.1.focvid23230","DOIUrl":"https://doi.org/10.3171/2024.1.focvid23230","url":null,"abstract":"Gunshot injuries (GSIs) to the spine constitute approximately 17% to 21% of all traumatic spinal injuries, with the cervical spine being the second most frequently affected region. There is a lack of approved algorithms for patients with GSIs to the spine. Surgical intervention is controversial; however, it is generally considered in cases involving neurological deterioration with incomplete deficit, externalized liquor fistula, instability, installed toxicity, and risk of migration. Detailed information on pediatric patients is limited, primarily due to the predominance of adult patients. This study presents the full-endoscopic removal of a bullet in the C2 vertebra of a pediatric patient. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23230","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"76 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140768620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-01DOI: 10.3171/2024.1.FOCVID23222
Vicente de Paulo Martins Coelho Junior, Joravar Dhaliwal, Vikram B. Chakravarthy
Around 40% of cancer patients present with spinal metastases (SM), the lumbar spine being the second most involved site (15%–30%) after the thoracic (60%–80%). Since the development of separation surgery, minimally invasive surgery (MIS) has increasingly been applied to approach SM, mirroring benefits yielded in the degenerative realm. Moreover, preoperative embolization potentially enhances local control for certain radioresistant histologies. Carbon fiber–reinforced PEEK hardware reduces image artifact, facilitating more accurate follow-up and radiotherapeutic planning. Additionally, short-segment cement-augmented constructs may be beneficial to decrease surgical morbidity and operative risk in this population. The authors present a lumbar spinal metastasis treated with MIS techniques. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23222
约 40% 的癌症患者会出现脊柱转移（SM），腰椎是第二大受累部位（15%-30%），仅次于胸椎（60%-80%）。自分离手术发展以来，微创手术（MIS）越来越多地被应用于脊柱转移瘤的治疗，这与退行性病变领域所取得的疗效如出一辙。此外，术前栓塞可增强对某些抗放射组织的局部控制。碳纤维加固的PEEK硬件可减少图像伪影，便于进行更准确的随访和放射治疗规划。此外，短节段水泥增强结构可能有利于降低这类人群的手术发病率和手术风险。作者介绍了用 MIS 技术治疗腰椎转移瘤的情况。视频请点击： https://stream.cadmore.media/r10.3171/2024.1.FOCVID23222
{"title":"MIS technique for separation surgery in lumbar spine metastatic disease","authors":"Vicente de Paulo Martins Coelho Junior, Joravar Dhaliwal, Vikram B. Chakravarthy","doi":"10.3171/2024.1.FOCVID23222","DOIUrl":"https://doi.org/10.3171/2024.1.FOCVID23222","url":null,"abstract":"Around 40% of cancer patients present with spinal metastases (SM), the lumbar spine being the second most involved site (15%–30%) after the thoracic (60%–80%). Since the development of separation surgery, minimally invasive surgery (MIS) has increasingly been applied to approach SM, mirroring benefits yielded in the degenerative realm. Moreover, preoperative embolization potentially enhances local control for certain radioresistant histologies. Carbon fiber–reinforced PEEK hardware reduces image artifact, facilitating more accurate follow-up and radiotherapeutic planning. Additionally, short-segment cement-augmented constructs may be beneficial to decrease surgical morbidity and operative risk in this population. The authors present a lumbar spinal metastasis treated with MIS techniques. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23222","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"267 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140762239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ganglioneuroma (GN) is a rare solid neoplasm developing from neural crest cells of sympathetic ganglia or adrenal medulla. It usually presents as an asymptomatic mass in the retroperitoneal space and mediastinum. Resection through open surgery or minimal access is recommended. The video illustrates the case of a 23-year-old female with an incidental finding of thoracic GN. The authors performed a combined, staged approach to ensure complete resection, which involved unilateral T3–4 biportal endoscopy (UBE) for rhizotomy and nerve root decompression, followed by video-assisted thoracoscopic surgery (VATS) for complete excision. The procedure was uneventful, with full recovery and no postoperative complications. The video can be found here: https://stream.cadmore.media/r10.3171/2024.2.FOCVID23210
{"title":"Combined unilateral biportal endoscopy and video-assisted thoracoscopic surgery for complete excision of a T3–T4 right ganglioneuroma","authors":"Enrico Giordan, Changik Lee, Dimas Rahman Setiawan, Phattareeya Pholprajug, Jin-Sung Kim","doi":"10.3171/2024.2.focvid23210","DOIUrl":"https://doi.org/10.3171/2024.2.focvid23210","url":null,"abstract":"Ganglioneuroma (GN) is a rare solid neoplasm developing from neural crest cells of sympathetic ganglia or adrenal medulla. It usually presents as an asymptomatic mass in the retroperitoneal space and mediastinum. Resection through open surgery or minimal access is recommended. The video illustrates the case of a 23-year-old female with an incidental finding of thoracic GN. The authors performed a combined, staged approach to ensure complete resection, which involved unilateral T3–4 biportal endoscopy (UBE) for rhizotomy and nerve root decompression, followed by video-assisted thoracoscopic surgery (VATS) for complete excision. The procedure was uneventful, with full recovery and no postoperative complications. The video can be found here: https://stream.cadmore.media/r10.3171/2024.2.FOCVID23210","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"552 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140775410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-01DOI: 10.3171/2024.1.FOCVID23208
Jannik Leyendecker, Nelson Sofoluke, C. P. Hofstetter, Sanjay Konakondla
Synovial spinal cysts cause radiculopathy and back pain, with rare reports of cauda equina syndrome. Hypermobility and instability are cornerstones for synovial cyst formation. The incidence is around 5%, and data for bilateral cysts are lacking. Surgery is indicated after conservative measures fail. Recurrence is common and is potentially due to joint violation and destabilization from open surgery. This could be prevented via ultra-minimally invasive approaches. The authors present full endoscopic removal of bilateral synovial cysts in a patient with grade 1 stable spondylolisthesis and include a 360° view for confirmation of complete decompression. Postoperatively, the patient reported immediate pain relief. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23208
{"title":"Full endoscopic resection of large bilateral synovial cysts in lumbar spine","authors":"Jannik Leyendecker, Nelson Sofoluke, C. P. Hofstetter, Sanjay Konakondla","doi":"10.3171/2024.1.FOCVID23208","DOIUrl":"https://doi.org/10.3171/2024.1.FOCVID23208","url":null,"abstract":"Synovial spinal cysts cause radiculopathy and back pain, with rare reports of cauda equina syndrome. Hypermobility and instability are cornerstones for synovial cyst formation. The incidence is around 5%, and data for bilateral cysts are lacking. Surgery is indicated after conservative measures fail. Recurrence is common and is potentially due to joint violation and destabilization from open surgery. This could be prevented via ultra-minimally invasive approaches. The authors present full endoscopic removal of bilateral synovial cysts in a patient with grade 1 stable spondylolisthesis and include a 360° view for confirmation of complete decompression. Postoperatively, the patient reported immediate pain relief. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23208","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"111 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140794042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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