Manhong Yang,1,* Long Wu,1,* Yuzhen Zeng,1,* Chengxia Zhao,1 Huiling Ye,2 Jianfei Wang,1 Ruotong Hao1 1Hengqin Hongqi Community Health Service Center, Hengqin Hospital, The First Affiliated Hospital of Guangzhou Medical University, Zhuhai, People’s Republic of China; 2Department of General Practice, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, People’s Republic of China *These authors contributed equally to this work Correspondence: Manhong Yang,...