1 School of Nursing, Jinan University, No.601, Huangpu Avenue West, Guangzhou, Guangdong, China.
2 Department of Biliary Tract Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
3 Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital, Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China.
4 Joint Institute of Metabolic Medicine between State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong and Jinan University, Guangzhou, China.
5 Bariatric Unit, Sunderland Royal Hospital, Sunderland, UK.
6 Department of Surgery, Whittington Hospital, London, UK.
7 University College London Medical School, London, UK.
8 School of Nursing, Jinan University, No.601, Huangpu Avenue West, Guangzhou, Guangdong, China. weijuchen2008@163.com.
9 Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital, Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China. yangwah@qq.com.
10 Joint Institute of Metabolic Medicine between State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong and Jinan University, Guangzhou, China. yangwah@qq.com.
11 State Key Laboratory of Pharmaceutical Biotechnology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China. yangwah@qq.com.
12 Department of Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China. yangwah@qq.com.