The First Affiliated Hospital of Gannan Medical University 2 articles published in JoVE Cancer Research An Enrichment Method for Small Extracellular Vesicles Derived from Liver Cancer Tissue Xiaoxing Wang1,2, Jie Chen1,2, Zhengzhe Li1,2, Defa Huang1,2, Xiaomei Yi1,2, Jiyang Wu1,2, Tianyu Zhong1,2 1The First School of Clinical Medicine, Gannan Medical University, 2Laboratory Medicine, First Affiliated Hospital of Gannan Medical University Here we describe the enrichment of small extracellular vesicles derived from liver cancer tissue through an optimized differential ultracentrifugation method. Neuroscience Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression Weipeng Zheng*1, Xiuhang Ruan*2, Xinhua Wei3, Fangtian Xu4, Yuanping Huang1, Ning Wang1, Haoyi Chen5, YingJie Liang6, Wende Xiao6, Xin Jiang1, Shifeng Wen6 1Department of Orthopedics, Guangzhou First People's Hospital, Guangzhou Medical University, 2Department of Radiology, Guangzhou First People's Hospital, Guangzhou Medical University, 3Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, 4Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, 5Department of Orthopedics, Guangzhou Chest Hospital, 6Department of Orthopedics, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou Medical University Here, we present a protocol for the application of diffusion tensor imaging parameters to evaluate spinal cord compression.