Clinical features of COVID-19 infection in patients with myasthenia gravis: a real-world retrospective study oleh Hui-Ning Li, Xiao-Na Xu, Ying-Hui Qin, Rui Liu, Wen-Yue Guo, Xiao-Yu Huang, Mo-Li Fan, Lin-Jie Zhang, Yuan Qi, Chao Zhang, Chao Zhang, Li Yang, Li Yang, Fu-Dong Shi, Fu-Dong Shi, Chun-Sheng Yang, Chun-Sheng Yang