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Developmental changes in prefrontal cortex activation in children with or without autism spectrum traits on near-infrared spectroscopy 自闭症谱系特征儿童或无自闭症谱系特征儿童的前额叶皮层激活在近红外光谱上的发育变化。
IF 1.7 4区 医学 Q4 CLINICAL NEUROLOGY Pub Date : 2024-03-30 DOI: 10.1016/j.braindev.2024.03.006
Taemi Niimi , Yuji Inaba , Hideo Honda

Background

Autism spectrum disorder (ASD) ranges from mild to severe symptoms, with autistic traits possibly distributed throughout the population. However, the precise neurodevelopmental differences in children with autistic traits remain unknown.

Subjects and methods

Fifty-three healthy volunteers (32 male and 21 female, mean [standard deviation] age: 12.9 [2.5] years) having a normal intelligence quotient and without social impairment were divided into two groups according to scores of the Pervasive Developmental Disorders Autism Society Japan Rating Scale (PARS). Subjects with or without autistic traits were placed into the high-PARS (n = 14) or low-PARS (n = 39) group, respectively. Activation of the prefrontal cortex was estimated using change in hemoglobin oxygenation concentration (Δ[oxy-Hb]) on near-infrared spectroscopy (NIRS) during a verbal fluency test. Age-related changes in prefrontal cortex activation were first assessed for each group. Then, the effects of age (elementary school age or junior/senior high school age) and PARS score on Δ[oxy-Hb] in the task were analyzed by two-way analysis of variance.

Results

We observed significant positive correlations between mean Δ[oxy-Hb] and age in the prefrontal cortex region in the low-PARS group. Mean Δ[oxy-Hb] in the low-PARS group was significantly higher than in the high-PARS group. Task performance results were comparable between the groups.

Conclusion

In PARS-determined typically developed children, prefrontal cortex activation on NIRS correlated positively with age. In healthy volunteers without ASD but harboring autistic traits, prefrontal cortex activation was markedly lower than in normal counterparts. Our results provide biological evidence that ASD may be a pervasively distributed disorder.

背景:自闭症谱系障碍(ASD)的症状从轻微到严重不等,自闭症特征可能分布于整个人群。然而,具有自闭症特征的儿童在神经发育方面的确切差异仍是未知数:53名智商正常、无社交障碍的健康志愿者(32名男性和21名女性,平均[标准差]年龄:12.9[2.5]岁)根据日本广泛性发育障碍自闭症协会评分量表(PARS)的得分被分为两组。具有或不具有自闭症特征的受试者分别被分为高PARS组(14人)或低PARS组(39人)。在进行语言流利性测试时,通过近红外光谱(NIRS)测定血红蛋白氧浓度(Δ[oxy-Hb])的变化来估计前额叶皮层的激活情况。首先评估了各组前额叶皮层激活的年龄相关变化。然后,通过双向方差分析分析了年龄(小学年龄或初中/高中年龄)和PARS得分对任务中Δ[oxy-Hb]的影响:结果:我们观察到低PARS组前额叶皮层区域的平均Δ[氧-Hb]与年龄之间存在明显的正相关。低PARS组的平均Δ[氧-Hb]明显高于高PARS组。两组的任务表现结果相当:结论:在 PARS 确定的典型发育儿童中,NIRS 的前额叶皮层激活与年龄呈正相关。在没有自闭症但具有自闭症特征的健康志愿者中,前额叶皮层的激活明显低于正常志愿者。我们的研究结果提供了生物学证据,证明自闭症可能是一种普遍分布的疾病。
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引用次数: 0
Effects of increased physical therapy staffing in the neonatal intensive care unit on oral feeding maturation and neurodevelopment of extremely low birth weight infants 新生儿重症监护室增加物理治疗人员对极低出生体重儿口腔喂养成熟和神经发育的影响。
IF 1.7 4区 医学 Q4 CLINICAL NEUROLOGY Pub Date : 2024-03-30 DOI: 10.1016/j.braindev.2024.03.005
Yoshinori Morioka , Masayuki Nonogaki , Daiyu Kobayashi , Junji Nishimoto , Shigeru Obayashi

Background

It remains a matter of debate as to what extent early intervention may facilitate long-term functional outcomes of preterm infants in the neonatal intensive care unit (NICU). We aimed to examine the effect of increasing physical therapy (PT) staff dedicated to the NICU on temporal changes (initiation, duration) of PT interventions and functional outcomes (acquisition of full oral feeding and Hammersmith Neonatal Neurological Examination).

Methods

Extremely low birth weight infants, retrospectively collected from an academic medical center, were allocated to two subgroups, either a baseline period (N = 48) without NICU-dedicated PT staff (non-dedicated group) or a quality improvement period (N = 42) with additional dedicated staff (dedicated group).

Results

Compared to those in the non-dedicated group, NICU infants in the dedicated group started PT earlier and had increased PT treatment for additional 14 min per day when achieving full oral feeding. The infants in the dedicated group significantly achieved full oral feeding earlier than the non-dedicated group. As for Hammersmith Neonatal Neurological Examination, there were significant differences in two items (total and tone) between the groups.

Conclusions

Additional NICU-dedicated PT staff facilitated earlier intervention and increased PT treatment in terms of daily duration. Moreover, the dedication shortened the completion of full oral feeding and improved neurological development, presumably resulting in better developmental outcome.

背景:早期干预能在多大程度上促进新生儿重症监护室(NICU)早产儿的长期功能结果,这仍然是一个争论不休的问题。我们旨在研究增加新生儿重症监护室的物理治疗(PT)专职人员对物理治疗干预的时间变化(开始时间、持续时间)和功能结果(获得完全口腔喂养和哈默史密斯新生儿神经系统检查)的影响:方法:将从一家学术医疗中心回顾性收集的极低出生体重儿分为两个亚组,一个是没有新生儿重症监护室专职护理人员的基线期(N = 48)(非专职组),另一个是有额外专职护理人员的质量改进期(N = 42)(专职组):与非专职人员组相比,专职人员组的新生儿重症监护室婴儿更早地开始了PT治疗,并且在实现完全口服喂养后,每天增加14分钟的PT治疗时间。专用组婴儿实现全口喂养的时间明显早于非专用组。在哈默史密斯新生儿神经系统检查中,两组婴儿在两个项目(总分和音调)上存在显著差异:结论:增加新生儿重症监护室的专职护理人员有助于更早地进行干预,并延长了每天的护理治疗时间。结论:增加新生儿重症监护室的专职护理人员有利于更早地进行干预,并延长了每天的护理时间。此外,专职护理人员缩短了完全口服喂养的完成时间,并改善了神经系统的发育,可能会带来更好的发育结果。
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引用次数: 0
Cover 封面
IF 1.7 4区 医学 Q4 CLINICAL NEUROLOGY Pub Date : 2024-03-22 DOI: 10.1016/S0387-7604(24)00051-2
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引用次数: 0
Prophylactic antiseizure medications for recurrent status epilepticus in nonsyndromic childhood epilepsy 预防性抗癫痫药物治疗非综合征儿童癫痫的复发性癫痫状态。
IF 1.7 4区 医学 Q4 CLINICAL NEUROLOGY Pub Date : 2024-03-21 DOI: 10.1016/j.braindev.2024.03.004
Hirokazu Takeuchi , Norimichi Higurashi , Yurika Toga

Purpose

The management of status epilepticus (SE) has mainly focused on the termination of ongoing SE episodes. However, long-term therapeutic strategies for the prevention of SE are lacking. This study aimed to investigate the effectiveness of prophylactic antiseizure medications (ASMs) for SEs in nonsyndromic childhood epilepsy.

Methods

This retrospective study was conducted at Jikei University Hospital. Patients <18 years of age, diagnosed with epilepsy, and experiencing three or more SE episodes within 1 year between April 1, 2017, and October 1, 2021, were included. ASMs introduced for seizure types that developed into SE were evaluated. The effectiveness of ASMs was determined by using the “Rule of Three”: An ASM was determined effective if patients were free of SE for a duration at least three times that of their longest SE interval in 12 months prior to intervention.

Results

The investigation included a total of 32 ASMs administered to 13 patients. The longest interval between SE episodes before ASM administration was 28–257 d. The first SE interval after ASM administration was 12–797 d. Levetiracetam (LEV) and clobazam (CLB) showed effectiveness in 2/10 and 5/6 patients, respectively. Other ASMs were ineffective. The leading etiology of epilepsy was perinatal brain injury, identified in four patients, and CLB was effective in all of them.

Conclusions

The present study suggests that CLB and LEV may prolong the SE interval in some cases of nonsyndromic childhood epilepsy. CLB may be beneficial, particularly in patients with perinatal brain injury.

目的:癫痫状态(SE)的治疗主要集中于终止正在进行的 SE 发作。然而,目前还缺乏预防 SE 的长期治疗策略。本研究旨在探讨预防性抗癫痫药物(ASMs)对非综合征儿童癫痫的有效性:这项回顾性研究在慈惠大学医院进行。患者结果:研究共对 13 名患者使用了 32 种 ASM。左乙拉西坦(LEV)和氯巴紮(CLB)分别对2/10和5/6的患者有效。其他 ASM 无效。四名患者的主要癫痫病因是围产期脑损伤,CLB对所有患者均有效:本研究表明,CLB 和 LEV 可延长某些非综合征儿童癫痫患者的 SE 间期。CLB可能有益,尤其是对围产期脑损伤患者。
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引用次数: 0
Metabolic etiologies in children with infantile epileptic spasm syndrome: Experience at a tertiary pediatric neurology center 婴儿癫痫痉挛综合征患儿的代谢病因:一家三级儿科神经病学中心的经验。
IF 1.7 4区 医学 Q4 CLINICAL NEUROLOGY Pub Date : 2024-03-16 DOI: 10.1016/j.braindev.2024.03.003
Merve Feyza Yüksel , Neslihan Doğulu , Miraç Yıldırım , Engin Köse , Ömer Bektaş , Fatma Tuba Eminoğlu , Serap Teber

Objective

Infantile epileptic spasm syndrome (IESS), including West syndrome (WS) and infantile spasm (IS), causes a challenging prognosis, particularly when associated with metabolic etiologies.

Methods

This study, conducted at a tertiary pediatric neurology center, explored the prevalence and clinical features of inborn errors of metabolism in 112 children with IESS over 10 years.

Results

Most patients presented with seizures, primarily flexor spasms, and the median age at onset was 5 months. Comprehensive clinical evaluation and neuroimaging revealed structural-acquired causes as the most common etiology. Notably, inborn errors of metabolism were identified in 5.4 % of cases, with six distinct diagnoses including nonketotic hyperglycinemia, pyridoxine-dependent epilepsy, primary coenzyme Q10 deficiency 7, congenital disorder of glycosylation type IIM, 6-pyruvoyl tetrahydrobiopterin synthase deficiency, and argininosuccinate lyase deficiency. The prevalence of inborn errors of metabolism in this cohort was consistent with global variations reported in the literature. Genetic testing, including karyotype analysis and whole exome sequencing, was performed in a subset of cases with no clear diagnosis, revealing abnormalities in approximately 50 % of cases. Adrenocorticotropic hormone emerged as the most frequently prescribed antiseizure medication.

Conclusion

This study provides insight into the diagnostic challenges associated with IESS and highlights the importance of metabolic investigations, especially in cases without a clear etiology. The findings emphasize the need for further genetic and metabolic studies to enhance prognostic accuracy and guide potential treatment options for children with IESS, particularly in populations with high rates of consanguinity.

目的:婴儿癫痫痉挛综合征(IESS),包括韦斯特综合征(WS)和婴儿痉挛症(IS),其预后极具挑战性,尤其是与代谢病因相关时:本研究在一家三级儿科神经病学中心进行,探讨了10年间112名IESS患儿先天性代谢异常的发病率和临床特征:大多数患者有癫痫发作,主要是屈肌痉挛,发病年龄中位数为5个月。综合临床评估和神经影像学检查显示,结构性获得性病因是最常见的病因。值得注意的是,5.4%的病例被确诊为先天性代谢异常,包括非酮症性高甘氨酸血症、吡哆醇依赖性癫痫、原发性辅酶Q10缺乏症7、先天性糖基化紊乱IIM型、6-丙酮酰四氢生物蝶呤合成酶缺乏症和精氨酸琥珀酸酶缺乏症等六种不同的诊断。该队列中先天性代谢异常的发病率与文献报道的全球变异情况一致。对部分诊断不明确的病例进行了基因检测,包括核型分析和全外显子组测序,发现约50%的病例存在异常。肾上腺皮质激素是最常用的抗癫痫药物:本研究深入探讨了与 IESS 相关的诊断难题,并强调了代谢检查的重要性,尤其是在没有明确病因的病例中。研究结果强调,有必要进一步开展遗传和代谢研究,以提高预后的准确性,并为IESS患儿的潜在治疗方案提供指导,尤其是在近亲结婚率较高的人群中。
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引用次数: 0
A female case of L1 syndrome that may have developed due to skewed X inactivation 一例女性 L1 综合征病例,其发病原因可能是偏斜的 X 失活。
IF 1.7 4区 医学 Q4 CLINICAL NEUROLOGY Pub Date : 2024-03-12 DOI: 10.1016/j.braindev.2024.03.001
Tatsuo Mori , Mutsuki Nakano , Takahiro Tayama , Aya Goji , Yoshihiro Toda , Shinichi Kameyama , Takeshi Mizuguchi , Maki Urushihara , Naomichi Matsumoto

Background

Heterozygous L1CAM variants cause L1 syndrome with hydrocephalus and aplasia/hypoplasia of the corpus callosum. L1 syndrome usually has an X-linked recessive inheritance pattern; however, we report a rare case occurring in a female child.

Case presentation

The patient’s family history was unremarkable. Fetal ultrasonography revealed enlarged bilateral ventricles of the brain and hypoplasia of the corpus callosum. The patient was born at 38 weeks and 4 days of gestation. Brain MRI performed on the 8th day of life revealed enlargement of the brain ventricles, marked in the lateral and third ventricles with irregular margins, and hypoplasia of the corpus callosum. Exome sequencing at the age of 2 years and 3 months revealed a de novo heterozygous L1CAM variant (NM_000425.5: c.2934_2935delp. (His978Glnfs * 25). X-chromosome inactivation using the human androgen receptor assay revealed that the pattern of X-chromosome inactivation in the patients was highly skewed (96.6 %). The patient is now 4 years and 11 months old and has a mild developmental delay (developmental quotient, 56) without significant progression of hydrocephalus.

Conclusion

In this case, we hypothesized that the dominant expression of the variant allele arising from skewed X inactivation likely caused L1 syndrome. Symptomatic female carriers may challenge the current policies of prenatal and preimplantation diagnoses.

背景:杂合子 L1CAM 变异可导致 L1 综合征,并伴有脑积水和胼胝体发育不全/发育不良。L1 综合征通常为 X 连锁隐性遗传,但我们报告了一例发生在一名女性儿童身上的罕见病例:病例介绍:患者的家族史并无异常。胎儿超声波检查显示双侧脑室增大,胼胝体发育不良。患者在妊娠38周零4天时出生。出生后第 8 天进行的脑磁共振成像显示脑室增大,侧脑室和第三脑室明显增大,边缘不规则,胼胝体发育不良。2 岁零 3 个月时进行的外显子组测序发现了一个新发的 L1CAM 杂合子变异体(NM_000425.5: c.2934_2935delp.(His978Glnfs * 25)。使用人类雄激素受体检测法进行的 X 染色体失活检测显示,患者的 X 染色体失活模式高度偏斜(96.6%)。患者现年 4 岁 11 个月,有轻度发育迟缓(发育商为 56),脑积水无明显进展:在这个病例中,我们推测由偏斜 X 失活引起的变异等位基因的显性表达很可能导致 L1 综合征。有症状的女性携带者可能会对现行的产前和植入前诊断政策提出挑战。
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引用次数: 0
Long-term efficacy of intrathecal cyclodextrin in patients with Niemann-Pick disease type C 环糊精对尼曼-皮克病 C 型患者的长期疗效。
IF 1.7 4区 医学 Q4 CLINICAL NEUROLOGY Pub Date : 2024-03-06 DOI: 10.1016/j.braindev.2024.03.002
Muneaki Matsuo , Takafumi Sakakibara , Yoshio Sakiyama , Tetsumin So , Motomichi Kosuga , Toshihiko Kakiuchi , Fumio Ichinose , Takuji Nakamura , Yoichi Ishitsuka , Tetsumi Irie

Background and objectives

Niemann–Pick type C (NPC) is a rare lysosomal storage disease characterized by hepatosplenomegaly and progressive neurological deterioration due to abnormal intracellular cholesterol transport. Cyclic oligosaccharide 2-hydroxypropyl-β-cyclodextrin (HPBCD) is an effective treatment for NPC; however, few reports have shown its long-term efficacy and safety. To demonstrate long-term efficacy and safety of intrathecal HPBCD (IT-HPBCD) treatment for NPC, we herein reports five patients with NPC treated using IT-HPBCD for 4–11 years.

Cases and results

Patients’ ages at the onset ranged from 1.5 to 20 years. Notably, all patients showed rapid disease progression despite treatment with miglustat before IT-HPBCD treatment. Similarly, some patients showed transient improvement; however, all patients’ conditions stabilized after long-term IT-HPBCD therapy. Mild-to-moderate hearing loss was observed in three patients. Furthermore, long-term treatment with IT-HPBCD may suppress neurological deterioration in patients with NPC; however, patients still experience some disease progression.

Conclusions

Long-term treatment with IT-HPBCD may suppress neurological deterioration in patients with NPC; however, the treatment outcome is dependent on the neurological status at the time of diagnosis, and disease progression is not completely inhibited. Awareness of the disease and newborn screening is needed for earlier disease detection. In addition, further optimization of the treatment protocol and additional treatments are needed to improve patient outcomes.

背景和目的:C 型尼曼-皮克病(NPC)是一种罕见的溶酶体储积病,其特征是由于细胞内胆固醇转运异常导致肝脾肿大和进行性神经功能衰退。环状寡糖 2-羟丙基-β-环糊精(HPBCD)是治疗 NPC 的有效药物,但很少有报告显示其长期疗效和安全性。为了证明鞘内 HPBCD(IT-HPBCD)治疗鼻咽癌的长期疗效和安全性,我们在此报告了五例使用 IT-HPBCD 治疗 4-11 年的鼻咽癌患者:患者发病时的年龄从1.5岁到20岁不等。值得注意的是,所有患者在接受 IT-HPBCD 治疗前均接受了米格鲁司他治疗,但疾病进展迅速。同样,一些患者的病情也出现了短暂的好转;然而,所有患者的病情都在长期接受 IT-HPBCD 治疗后趋于稳定。有三名患者出现轻度至中度听力损失。此外,IT-HPBCD的长期治疗可抑制鼻咽癌患者的神经系统恶化,但患者的病情仍会有所进展:结论:使用 IT-HPBCD 进行长期治疗可抑制鼻咽癌患者的神经系统恶化;但是,治疗效果取决于诊断时的神经系统状况,而且疾病进展并未完全被抑制。需要提高对该疾病的认识并进行新生儿筛查,以便更早地发现疾病。此外,还需要进一步优化治疗方案和增加治疗方法,以改善患者的预后。
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引用次数: 0
Cover 封面
IF 1.7 4区 医学 Q4 CLINICAL NEUROLOGY Pub Date : 2024-03-05 DOI: 10.1016/S0387-7604(24)00036-6
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引用次数: 0
The muscle regeneration marker FOXP3 is associated with muscle injury in Duchenne muscular dystrophy 肌肉再生标记物 FOXP3 与杜氏肌营养不良症的肌肉损伤有关。
IF 1.7 4区 医学 Q4 CLINICAL NEUROLOGY Pub Date : 2024-02-22 DOI: 10.1016/j.braindev.2024.02.001
Sthephanie Yannin Hernández-de la Cruz , Thania Ordaz-Robles (Methodology, Data curation, Validation, Writing – review & editing) , Marco Antonio Villaldama-Soriano , Cristian Emmanuel Luna-Guzmán , Tomas Almeida-Becerril , Judith Villa-Morales , Alan Cárdenas-Conejo , Eugenia Dolores Ruíz-Cruz , Jorge Maldonado-Hernandez , Mariela Bernabe-Garcia , Lourdes Barbosa-Cortés , Maricela Rodríguez-Cruz

Background

In Duchenne muscular dystrophy (DMD), the immune system cells (ISC) synthesize molecules to regulate inflammation, a process needed to regenerate muscle. The relationship between those molecules and the muscle injury is unknown. Monocytes belonging to ISC are regulated by omega-3 fatty acids (ω-3 LCPUFAs) in DMD, but whether those fatty acids influence other ISC like T-cells is unknown.

Objective

We analyzed the expression of the muscle regeneration markers (FOXP3 and AREG) in circulating leukocytes of DMD patients with different lower limb muscle functions and whether ω-3 LCPUFAs regulate the expression of those markers, and the populations of circulating T-cells, their intracellular cytokines, and disease progression (CD69 and CD49d) markers.

Methods

This placebo-controlled, double-blind, randomized study was conducted in DMD boys supplemented with ω-3 LCPUFAs (n = 18) or placebo (sunflower oil, n = 13) for six months. FOXP3 and AREG mRNA expression in leukocytes, immunophenotyping of T-cell populations, CD49d and CD69 markers, and intracellular cytokines in blood samples were analyzed at baseline and months 1, 2, 3, and 6 of supplementation.

Results

Patients with assisted ambulation expressed higher (P = 0.015) FOXP3 mRNA levels than ambulatory patients. The FOXP3 mRNA expression correlated (Rho = -0.526, P = 0.03) with the Vignos scale score at month six of supplementation with ω-3 LCPUFAs. CD49d + CD8 + T-cells population was lower (P = 0.037) in the ω −3 LCPUFAs group than placebo at month six of supplementation.

Conclusion

FOXP3 is highly expressed in circulating leukocytes of DMD patients with the worst muscle function. Omega-3 LCPUFAs might modulate the synthesis of the adhesion marker CD49d + CD8 + T-cells, but their plausible impact on FOXP3 needs more research.

背景:在杜氏肌营养不良症(DMD)患者中,免疫系统细胞(ISC)合成调节炎症的分子,而炎症是肌肉再生所需的一个过程。这些分子与肌肉损伤之间的关系尚不清楚。在 DMD 中,属于 ISC 的单核细胞受欧米伽-3 脂肪酸(ω-3 LCPUFAs)的调节,但这些脂肪酸是否会影响其他 ISC(如 T 细胞)尚不清楚:我们分析了具有不同下肢肌肉功能的 DMD 患者循环白细胞中肌肉再生标志物(FOXP3 和 AREG)的表达情况,以及ω-3 LCPUFA 是否会调节这些标志物的表达、循环 T 细胞的数量、细胞内细胞因子和疾病进展标志物(CD69 和 CD49d):这项安慰剂对照、双盲、随机研究对 DMD 男孩进行了为期 6 个月的ω-3 LCPUFAs(n = 18)或安慰剂(葵花籽油,n = 13)补充。在补充剂的基线期和第 1、2、3 和 6 个月,对白细胞中的 FOXP3 和 AREG mRNA 表达、T 细胞群的免疫分型、CD49d 和 CD69 标记以及血液样本中的细胞内细胞因子进行了分析:结果:辅助活动患者的 FOXP3 mRNA 水平高于非活动患者(P = 0.015)。FOXP3 mRNA表达与补充ω-3 LCPUFAs后第6个月的Vignos量表评分相关(Rho = -0.526,P = 0.03)。补充ω-3 LCPUFAs六个月后,ω-3 LCPUFAs组的CD49d + CD8 + T细胞数量低于安慰剂组(P = 0.037):结论:FOXP3在肌肉功能最差的DMD患者的循环白细胞中高表达。欧米伽-3 LCPUFAs可能会调节粘附标志物CD49d + CD8 + T细胞的合成,但其对FOXP3的影响尚需进一步研究。
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引用次数: 0
Acknowledgments to Anonymous Reviewers in 2023 鸣谢 2023 年匿名审稿人
IF 1.7 4区 医学 Q4 CLINICAL NEUROLOGY Pub Date : 2024-02-17 DOI: 10.1016/S0387-7604(24)00011-1
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引用次数: 0
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