Affiliation: | 1. Department of Nephrology, Hainan General Hospital, , Haikou, Hainan, 570311 China;2. Department of Hepatobiliary Surgery, Hainan General Hospital, , Haikou, Hainan, 570311 China;3. Department of Neurosurgery, The Affiliated Hospital of Hainan Medical College, , Haikou, Hainan, 570300 China;4. Department of Nephrology, Second Xiangya Hospital, Central South University, , Changsha, Hunan, 410005 China |