Human Umbilical Cord Mesenchymal Stem Cells to Treat Neuromyelitis Optica Spectrum Disorder (hUC–MSC–NMOSD): A Study Protocol for a Prospective, Multicenter, Randomized, Placebo-Co... oleh Xiao-Ying Yao, Li Xie, Yu Cai, Ying Zhang, Ye Deng, Mei-Chun Gao, Yi-Shu Wang, Hui-Ming Xu, Jie Ding, Yi-Fan Wu, Nan Zhao, Ze Wang, Ya-Ying Song, Li-Ping Wang, Chong Xie, Ze-Zhi Li, Wen-Bin Wan, Yan Lin, Hai-Feng Jin, Kan Wang, Hui-Ying Qiu, Lei Zhuang, Yan Zhou, Yu-Yan Jin, Li-Ping Ni, Jia-Li Yan, Quan Guo, Jia-Hui Xue, Bi-Yun Qian, Bi-Yun Qian, Yang-Tai Guan