1 Department of Gastroenterology, Shenzhen Nanshan People's Hospital, the 6th affiliated Hospital of Shenzhen University Medical School, Shenzhen, Guangdong, China.
2 The Second Affiliated Hospital of the University of South China, Hengyang, Hunan, China.
3 Pain Management Department of The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong & Longgang District People's Hospital of Shenzhen, Shenzhen, Guangdong, China.
4 Urology department, Shenzhen Nanshan People's Hospital, the 6th affiliated Hospital of Shenzhen University Medical School, Shenzhen, Guangdong, China.