1. Nan Fang Hospital of Nan Fang Medical University, Guangzhou, Guangdong, China (mainland)
2. The Third Affiliated Hospital of Nan Fang Medical University, Guangzhou, Guangdong, China (mainland)
3. Hunan Provincial People’s Hospital, Changsha, Hunan, China (mainland)
4. The Second Affiliated Hospital of Wen Zhou Medical University, Wenzhou, Zhejiang, China (mainland)