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HPLC in simultaneous determination of seven main flavonoids in Epimediumof different places of origin HPLC法同时测定不同产地淫羊藿中7种主要黄酮类化合物的含量
Q4 Medicine Pub Date : 2015-01-01 DOI: 10.3724/SP.J.1008.2015.01352
Mi-na Huang, Yan-ni Zhou, Qiang Liu, Jin Zhou, L. Lv
Objective To determine the contents of seven main flavonoids in Epimediumof different places of origin by high performance liquid chromatography(HPLC).Methods The HPLC condition was as follows:SHISEIDO MG-C18column(3.0mm×100 mm,3.0μm);the mobile phase consisted of acetonitrile and water containing 0.1% formic acid was used as gradient elute;the gradient of acetonitrile was 25%(0-10min),25%-40%(10-12min),40%-45%(12-22min),45%-75%(22-25min)and 75%(25-30 min);flow rate was 0.6 mL/min;UV detection wavelength was set at 270 nm;column temperature was 25℃;and injection volume was 5μL.The sample was ultrasonically extracted with 70% ethanol solution.Results The seven flavonoids,including epimedin A,epimedin B,epimedin C,icariin,icariside Ⅰ,icariside Ⅱ and anhydroicaritin were separated at baseline within 30 min.The standard curves had good linearity(r=0.999 9),with the RSD%of intraday and interday precision being both less than 2.0%,the recovery being 98%-102%,and the RSD% of stability and repeatability also being less than 2.0%.The results showed that the method could meet the requirements of method validation.The contents of seven flavonoids in reference crude meterial and Herba Epimedii from Liaoning,Gansu and Hubei province were determined.Conclusion The present method is rapid and simple,and can be used for quality control of Epimedium,which may lay a foundation for studying the pharmacokinetics and tissue distribution of the flavonoids of Epimedium.
目的采用高效液相色谱法测定不同产地淫羊藿中7种主要黄酮类化合物的含量。方法高效液相色谱条件为:SHISEIDO mg - c18色谱柱(3.0mm×100 mm,3.0μm),流动相为乙腈-含0.1%甲酸的水为梯度洗脱液,乙腈梯度为25%(0-10min)、25%-40%(10-12min)、40%-45%(12-22min)、45%-75%(22-25min)、75%(25-30 min),流速为0.6 mL/min,紫外检测波长为270 nm,柱温为25℃,进样量为5μL。用70%乙醇溶液超声提取样品。结果淫羊藿苷A、淫羊藿苷B、淫羊藿苷C、淫羊藿苷、淫羊藿苷Ⅰ、淫羊藿苷Ⅱ、无氢淫羊藿苷7种黄酮类化合物均在30 min内分离得到,标准曲线线性良好(r=0.999 9),日内、日间精密度RSD%均小于2.0%,回收率为98% ~ 102%,稳定性和重复性RSD%均小于2.0%。结果表明,该方法能够满足方法验证的要求。对辽宁、甘肃、湖北三地淫羊藿药材和对照药材中7种黄酮类化合物的含量进行了测定。结论本方法快速、简便,可用于淫羊藿药材的质量控制,为淫羊藿总黄酮的药动学及组织分布研究奠定基础。
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引用次数: 0
Presetting negative pressure drainage for anastomotic leakage after esophageal cancer surgery: a clinical comparative analysis 食管癌术后吻合口漏的预设定负压引流临床对比分析
Q4 Medicine Pub Date : 2015-01-01 DOI: 10.3724/SP.J.1008.2015.01356
Kenan Huang, Zhi-fei Xu, Xinyu Ding, Xu Li, Chen Qi, Bin Wu, Hua Tang
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引用次数: 0
Modified microneedle roller enhancing percutaneous absorption of triamcinolone acetonide by human hyperplastic scar skin 改良微针滚轮增强增生性瘢痕皮肤对曲安奈德的经皮吸收
Q4 Medicine Pub Date : 2015-01-01 DOI: 10.3724/SP.J.1008.2015.00058
Ya Li, Juan-juan Zhang, Li-Chao Zhang, Quan‐gang Zhu, Hai-jin Yu, Zhijuan Wu
Objective To evaluate the role of modified microneedle roller in promoting permeation of triamcinolone acetonide across human hyperplastic scar skin.Methods The morphology of human hyperplastic scar skin was visualized by methylene blue staining and H-E staining after the insertion by microneedles of different lengths.The content of triamcinolone acetonide was determined by high performance liquid chromatography(HPLC).The in vivo absorption characteristics across human hyperplastic scar skin were investigated by elution method and the homogenization method at 1hand 12 hafter drug application.Skin irritation was assessed by transepidermal water-loss(TEWL)measurement and laser Doppler flowmetry.Results The preferred microneedle length of 500μm effectively penetrated through the stratum corneum,and the distribution of the microchannels was homogeneous.It was found that 27.42% and 60.64% of the drug administered entered the skin at 1h and 12 h,respectively.The drug accumulation in the skin at 12 hdecreased to 45.98% of that at 1hafter intracutaneous injection,while the accumulation increased to 2.73-fold and 4.18-fold in the microneedle group and direct application of triamcinolone acetonide cream group,respectively,with the content of microneedle group being 3.56-fold that of the direct cream application group(P0.05).Triamcinolone acetonide distribution was not homogeneous at 12 hafter intracutaneous injection,with the level being(4.83±5.51)μg,while the distribution in the microneedle group was homogenous,with the level being(0.93±0.14)μg.TEWL results showed no significant difference in skin irritation between microneedle and intracutaneous injection group;however,laser Doppler flowmetry showed that the skin irritation of intracutaneous injection group was 8.40-fold that of microneedle treatment group.Conclusion Modified microneedle roller treatment followed by cream application,compared with intracutaneous injection,can yield more homogeneous distribution and less skin irritation in human hyperplastic scar skin,but its efficacy for scar treatment remains to be further verified.
目的探讨改良微针辊对曲安奈德在人增生性瘢痕皮肤渗透的促进作用。方法采用亚甲基蓝染色和H-E染色观察不同长度微针插入人增生性瘢痕皮肤后的皮肤形态。采用高效液相色谱法测定曲安奈德的含量。采用洗脱法和匀浆法研究了增生性瘢痕皮肤在给药后的体内吸收特性。通过经皮失水(TEWL)测量和激光多普勒血流法评估皮肤刺激。结果优选长度为500μm的微针能有效穿透角质层,且微通道分布均匀。结果发现,给药1h和12h进入皮肤的比例分别为27.42%和60.64%。皮内注射后12 h皮肤内药物蓄积下降至1h时的45.98%,而微针组和直接使用曲安奈德乳膏组的蓄积分别增加至2.73倍和4.18倍,其中微针组的含量为直接使用乳膏组的3.56倍(P0.05)。曲安奈德在皮内注射12 h时分布不均匀,为(4.83±5.51)μg,而微针组分布均匀,为(0.93±0.14)μg。TEWL结果显示,皮内注射组与微针组皮肤刺激程度无显著差异,但激光多普勒血流仪显示,皮内注射组皮肤刺激程度是微针治疗组的8.40倍。结论与皮内注射相比,改良微针滚轮治疗后涂抹乳膏能使人增生性疤痕皮肤分布更均匀,皮肤刺激更小,但其治疗疤痕的效果有待进一步验证。
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引用次数: 0
Physical therapy in grassroot military medical units of PLA: current situation 解放军基层军医单位物理治疗现状
Q4 Medicine Pub Date : 2015-01-01 DOI: 10.3724/SP.J.1008.2015.00065
Fanfu Fang, G. Han, Fei Zhou, Dong Li, Hong-da Chen, Wei Gu
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引用次数: 1
Effect of Vav3 gene inhibition on inhibitor of apoptosis proteins and multidrug resistance in gastric cancer cells Vav3基因抑制对胃癌细胞凋亡抑制蛋白及多药耐药的影响
Q4 Medicine Pub Date : 2015-01-01 DOI: 10.3724/SP.J.1008.2015.00136
B. Tan, L. Yong, L. Fan, Qun Zhao, Dong Wang, Yu Liu
Objective To explore the role of Vav3 gene in multidrug resistance(MDR)of gastric cancer and the related mechanism.Methods QRT-PCR was used to examine the expressions of Vav3 gene in gastric cancer tissues,tumor-adjacent tissues,human gastric cancer cell line SGC7901,and gastric epithelial cell line GES-1.Then Vav3-siRNA was synthesized and tansfected into SGC7901 cells. MTT assay was then used to determine the inhibition rates of tumor cells exposed to chemotherapeutic agents(5-FU,L-OHP)before and after Vav3-siRNA transfection.Real-time RT-PCR and Western blotting analysis were used to observe the expressions of inhibitor of apoptosis proteins(IAPs):xIAP,Survivin,and Livin;meanwhile,the expression and activity of Caspase-3and Caspase-8 were also determined.Results Vav3 was over-expressed in gastric cancer tissues and gastric cell line compared with those in tumor-adjacent tissues and gastric epithelial cell line GES-1(P0.05).Expression of Vav3 was significantly inhibited by Vav3-siRNA(P0.01).Inhibition rates of tumor cells exposed to 5-FU and L-OHP were significantly increased 48 hafter Vav3-siRNA tansfection(P0.05).The expressions of xIAP and Survivin were significantly decreased in cancer cells after Vav3-siRNA tansfection(both P0.05),and no notable change was found for Livin expression;also the expression and activity of Caspase-3and Caspase-8protein were significantly increased after Vav3-siRNA tansfection in SGC7901cells(all P0.05).Conclusion Vav3 can participate in MDR of gastric cancer by regulating apoptotic pathways,and inhibition of Vav3 can help reverse MDR of gastric cancer cells by regulating some IAPs.
目的探讨Vav3基因在胃癌多药耐药(MDR)中的作用及其机制。方法采用QRT-PCR方法检测Vav3基因在胃癌组织、瘤旁组织、人胃癌细胞系SGC7901和胃上皮细胞系GES-1中的表达。然后合成Vav3-siRNA,转染SGC7901细胞。然后用MTT法测定Vav3-siRNA转染前后肿瘤细胞暴露于化疗药物(5-FU,L-OHP)的抑制率。采用Real-time RT-PCR和Western blotting分析观察凋亡抑制蛋白(IAPs) xIAP、Survivin、Livin的表达,同时检测caspase -3、Caspase-8的表达及活性。结果Vav3在胃癌组织和胃癌细胞系中的表达高于癌旁组织和胃癌上皮细胞系GES-1(P0.05)。Vav3- sirna显著抑制Vav3的表达(P0.01)。转染Vav3-siRNA后,5-FU和L-OHP对肿瘤细胞的抑制率显著提高(P0.05)。转染Vav3-siRNA后,癌细胞中xIAP和Survivin的表达均显著降低(均P0.05), Livin的表达无明显变化;转染Vav3-siRNA后,sgc7901细胞中caspase -3和caspase -8蛋白的表达和活性均显著升高(均P0.05)。结论Vav3可通过调节凋亡通路参与胃癌多药耐药,抑制Vav3可通过调节部分IAPs帮助逆转胃癌细胞的多药耐药。
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引用次数: 0
Endoscopic resection of third ventricular colloid cysts: a case report 内镜下第三脑室胶质囊肿切除术1例
Q4 Medicine Pub Date : 2015-01-01 DOI: 10.3724/SP.J.1008.2015.00115
S. Deng, Jing-hui Li, Tao Sun, Hua-lin Yu, Yi-liu Ma, Ying Yang
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引用次数: 0
First line XELOX chemotherapy combined with subsequent capecitabine maintenance chemotherapy for patients with advanced gastric cancer: a clinical analysis of effectiveness 一线XELOX化疗联合后续卡培他滨维持化疗治疗晚期胃癌患者的临床疗效分析
Q4 Medicine Pub Date : 2015-01-01 DOI: 10.3724/SP.J.1008.2015.00346
Jing Yang, Mian-hua Wu, Qi Zhang, Xiangcheng Wang
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引用次数: 1
Junctophilin-2 protein in cardiac myocytes: progress in physiological and pathophysiological functions 心肌细胞中结膜亲素-2蛋白:生理和病理生理功能的进展
Q4 Medicine Pub Date : 2015-01-01 DOI: 10.3724/SP.J.1008.2015.00429
Hua Shen, Miaoling Li, Deng-ke He, Liang Yin, Wang Xi, Zhinong Wang
The normal cardiac function relies on highly specialized subcellular architectures.The subcellular domains junctional membrane complexes(JMCs)are essential for excitation-contraction coupling of the myocardium.Junctophilin-2(JPH2)has been widely recognized as the crucial structural protein involved in JMCs.Initial studies limited the role of JPH2 to anchoring junctional sarcoplasmic reticulum(SR)and transverse-tubule(T-tubule) membrane invaginations.Recently,researchers have found an expanded role of JPH2 in the development of postnatal T-tubule in mammals,progression of disease in failing hearts,hypertrophic cardiomyopathy and arrhythmias.In this review we summarized the role of JPH2 in the above physiological or pathophysiological processes and discussed the perspective in future investigation.
正常的心脏功能依赖于高度特化的亚细胞结构。亚细胞结构域连接膜复合物(JMCs)是心肌兴奋-收缩耦联的重要组成部分,其中连接亲蛋白2(junctophilin -2, JPH2)被广泛认为是参与连接膜复合物的关键结构蛋白。最初的研究将JPH2的作用局限于锚定关节肌浆网(SR)和横小管(t小管)膜内陷。最近,研究人员发现JPH2在哺乳动物出生后t小管的发育、心力衰竭疾病的进展、肥厚性心肌病和心律失常中的作用扩大。本文就JPH2在上述生理或病理生理过程中的作用进行综述,并对今后的研究方向进行了展望。
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引用次数: 0
Effect of silk fibroin on degradation and in vivo biocompatibility of poly (L-lactic-co-ε-caprolactone) electronspun nanofibrous scaffolds 丝素对聚l -乳酸-co-ε-己内酯电子纺纳米纤维支架降解及体内生物相容性的影响
Q4 Medicine Pub Date : 2015-01-01 DOI: 10.3724/SP.J.1008.2015.00500
Zixuan Cheng, Cheng-wei Yang, Li Liu, Yang Yang, Guoying Deng, Xiao-Jian Ye
Objective To investigate the effect of silk fibroin(SF) on degradation and biocompatibility of poly(L-lactic acidco-e-caprolactone)(P[LLA-CL]) in vivo.Methods The scaffolds of P(LLA-CL)(w / w = 1 ∶ 1) blended with 25% of SF(SF / P[LLA-CL]) and P(LLA-CL) were prepared by electrospinning.Both kinds of scaffolds were subcutaneously implanted in 45 6-monthold rats for up to 6 months to evaluate their degradation and biocompatibility characteristics.Results Pathological sections showed P(LLA-CL) scaffold become swollen and began to separate into different layers after 3 months,and then become broken after 6 months;while SF / P(LLA-CL) scaffold largely maintained its structure after 6 months.Immunohistochemical staining showed a large number of macrophages on the surface and in P(LLA-CL) scaffolds 1 month after implantation,and they could still be found 3 months after implantation,accompanied by foreign body giant cells; while no obvious macrophages or foreign body giant cells were found in SF / P(LLA-CL) scaffolds at different time points.Examination of inflammatory gene expression showed that TNF-α and IL-10 expression in P(LLA-CL) scaffolds was significantly higher than that in SF / P(LLA-CL) scaffolds 1 week after implantation(P 0.05),the same was also true for TNF-α,IL-1β and IL-10 expression 1 month after implantation(P 0.05),for TNF-α and IL-10 expression 2 months after implantation(P 0.05),for TGF-β expression 3 months after implantation(P 0.05),and for IL-1β and TGF-β expression 6months after implantation(P 0.05).Conclusion SF incorporation can delay degradation,reduce inflammation,and improve the biocompatibility of P(LLA-CL) scaffolds,which may provide reference for scaffold design in tissue engineering.
目的研究丝素(SF)对聚l -乳酸-e-己内酯(P[la - cl])体内降解及生物相容性的影响。方法采用静电纺丝法制备25% SF(SF / P[la - cl])和P(la - cl)共混的P(la - cl)(w / w = 1∶1)支架。将两种支架分别植入45只6月龄大鼠皮下长达6个月,评估其降解和生物相容性特性。结果病理切片显示,P(LLA-CL)支架在3个月后肿胀并开始分层分离,6个月后断裂;而SF / P(LLA-CL)支架在6个月后基本保持其结构。免疫组化染色显示P(LLA-CL)支架在植入1个月后表面及内可见大量巨噬细胞,植入3个月后仍可发现巨噬细胞,并伴有异物巨细胞;SF / P(la - cl)支架在不同时间点均未见明显巨噬细胞和异物巨细胞。炎性基因表达检测显示,P(la - cl)支架1周后TNF-α、IL-10表达显著高于SF / P(la - cl)支架(P 0.05), 1个月后TNF-α、IL-1β、IL-10表达显著高于SF / P(la - cl)支架(P 0.05), 2个月后TNF-α、IL-10表达显著高于SF / P(la - cl)支架(P 0.05), 3个月后TGF-β表达显著高于TNF-α、IL-10表达(P 0.05), 6个月后IL-1β、TGF-β表达显著高于SF / P(la - cl)支架(P 0.05)。结论SF掺入能延缓P(LLA-CL)支架的降解、减轻炎症、提高其生物相容性,可为组织工程支架设计提供参考。
{"title":"Effect of silk fibroin on degradation and in vivo biocompatibility of poly (L-lactic-co-ε-caprolactone) electronspun nanofibrous scaffolds","authors":"Zixuan Cheng, Cheng-wei Yang, Li Liu, Yang Yang, Guoying Deng, Xiao-Jian Ye","doi":"10.3724/SP.J.1008.2015.00500","DOIUrl":"https://doi.org/10.3724/SP.J.1008.2015.00500","url":null,"abstract":"Objective To investigate the effect of silk fibroin(SF) on degradation and biocompatibility of poly(L-lactic acidco-e-caprolactone)(P[LLA-CL]) in vivo.Methods The scaffolds of P(LLA-CL)(w / w = 1 ∶ 1) blended with 25% of SF(SF / P[LLA-CL]) and P(LLA-CL) were prepared by electrospinning.Both kinds of scaffolds were subcutaneously implanted in 45 6-monthold rats for up to 6 months to evaluate their degradation and biocompatibility characteristics.Results Pathological sections showed P(LLA-CL) scaffold become swollen and began to separate into different layers after 3 months,and then become broken after 6 months;while SF / P(LLA-CL) scaffold largely maintained its structure after 6 months.Immunohistochemical staining showed a large number of macrophages on the surface and in P(LLA-CL) scaffolds 1 month after implantation,and they could still be found 3 months after implantation,accompanied by foreign body giant cells; while no obvious macrophages or foreign body giant cells were found in SF / P(LLA-CL) scaffolds at different time points.Examination of inflammatory gene expression showed that TNF-α and IL-10 expression in P(LLA-CL) scaffolds was significantly higher than that in SF / P(LLA-CL) scaffolds 1 week after implantation(P 0.05),the same was also true for TNF-α,IL-1β and IL-10 expression 1 month after implantation(P 0.05),for TNF-α and IL-10 expression 2 months after implantation(P 0.05),for TGF-β expression 3 months after implantation(P 0.05),and for IL-1β and TGF-β expression 6months after implantation(P 0.05).Conclusion SF incorporation can delay degradation,reduce inflammation,and improve the biocompatibility of P(LLA-CL) scaffolds,which may provide reference for scaffold design in tissue engineering.","PeriodicalId":6893,"journal":{"name":"Academic Journal of Second Military Medical University","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69847742","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}
引用次数: 0
Prostate biopsy guided by transrectal ultrasound combined with MRI compartmental localization in diagnosis of prostate cancer 经直肠超声引导下前列腺活检联合MRI隔室定位诊断前列腺癌
Q4 Medicine Pub Date : 2015-01-01 DOI: 10.3724/SP.J.1008.2015.00522
Hui-qing Wang, Guang’an Xiao, Bo Yang, Guodong Jing, Chao Zhang, F. Guo, Yinghao Sun
Objective To explore the value of prostate biopsy guided by transrectal ultrasound combined with MRI compartmental localization in the diagnosis of prostate cancer.Methods Fifty patients with elevated prostate specific antigen levels were recruited in this study.All the patients underwent MRI scan before biopsy and the prostate was divided into 12 compartments accordingly.The direction and region of the division were consistent with the ultrasound.Systematic 12-samples needle biopsy was performed and additional biopsy was done for the suspected compartments.According to histopathology,the positive detection rates of systematic 12-samples needle biopsy and systematic biopsy combined with added punctures of suspected compartments were analyzed and compared.Results Prostate cancer detection rate of systematic biopsy combined with punctures of suspected compartment was significantly higher than that of systematic 12-samples needle biopsy(42.0% vs 36.0%,P 0.05).Systematic biopsy combined with punctures of suspected compartment caused hematuria in 5 cases,bloody stools in 13 cases,and fever in one,and there were no other complications.Conclusion Transrectal ultrasound combined with MRI compartmental localization can improve the outcome of prostate biopsy,benefiting the early diagnosis of prostate cancer.
目的探讨经直肠超声引导下前列腺活检结合MRI隔室定位对前列腺癌的诊断价值。方法选择前列腺特异性抗原水平升高的患者50例。所有患者活检前均行MRI扫描,并将前列腺划分为12个区室。分裂的方向和区域与超声一致。对12个样本进行了系统的针活检,并对可疑的隔室进行了额外的活检。根据组织病理学,分析比较系统12例穿刺活检与系统活检合并疑似隔室穿刺的阳性检出率。结果系统活检联合可疑间室穿刺前列腺癌检出率显著高于系统12例穿刺前列腺癌检出率(42.0% vs 36.0%,P < 0.05)。系统活检合并疑似隔室穿刺导致血尿5例,血便13例,发热1例,无其他并发症。结论经直肠超声联合MRI隔室定位可提高前列腺活检的预后,有利于前列腺癌的早期诊断。
{"title":"Prostate biopsy guided by transrectal ultrasound combined with MRI compartmental localization in diagnosis of prostate cancer","authors":"Hui-qing Wang, Guang’an Xiao, Bo Yang, Guodong Jing, Chao Zhang, F. Guo, Yinghao Sun","doi":"10.3724/SP.J.1008.2015.00522","DOIUrl":"https://doi.org/10.3724/SP.J.1008.2015.00522","url":null,"abstract":"Objective To explore the value of prostate biopsy guided by transrectal ultrasound combined with MRI compartmental localization in the diagnosis of prostate cancer.Methods Fifty patients with elevated prostate specific antigen levels were recruited in this study.All the patients underwent MRI scan before biopsy and the prostate was divided into 12 compartments accordingly.The direction and region of the division were consistent with the ultrasound.Systematic 12-samples needle biopsy was performed and additional biopsy was done for the suspected compartments.According to histopathology,the positive detection rates of systematic 12-samples needle biopsy and systematic biopsy combined with added punctures of suspected compartments were analyzed and compared.Results Prostate cancer detection rate of systematic biopsy combined with punctures of suspected compartment was significantly higher than that of systematic 12-samples needle biopsy(42.0% vs 36.0%,P 0.05).Systematic biopsy combined with punctures of suspected compartment caused hematuria in 5 cases,bloody stools in 13 cases,and fever in one,and there were no other complications.Conclusion Transrectal ultrasound combined with MRI compartmental localization can improve the outcome of prostate biopsy,benefiting the early diagnosis of prostate cancer.","PeriodicalId":6893,"journal":{"name":"Academic Journal of Second Military Medical University","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69848112","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}
引用次数: 0
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第二军医大学学报
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