1. Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
2. JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
3. Beijing Aili Myasthenia Gravis Care Center, Beijing, China
4. Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
5. Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China