1. Department of Nephrology, Shenzhen Longhua District Central Hospital, Affiliated Central Hospital of Shenzhen Longhua District, Guangdong Medical University, Shenzhen, Guangdong 518110, P.R. China
2. Department of Acupuncture and Massage, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518037, P.R. China
3. Department of Anesthesiology, The 305 Hospital of PLA, Beijing 100036, P.R. China
4. Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, P.R. China
5. Department of Nephrology, Shenzhen Longhua District Central Hospital, Affiliated Central Hospital of Shenzhen Longhua District, Guangdong Medical University, Shenzhen, Guangdong 518110