Supporting_information_file – Supplemental material for Early negative fluid balance is associated with lower mortality after cardiovascular surgery

Supplemental material, Supporting_information_file for Early negative fluid balance is associated with lower mortality after cardiovascular surgery by Chenglong Li, Hong Wang, Nan Liu, Ming Jia, Haitao Zhang, Xiuming Xi and Xiaotong Hou, The Beijing Acute Kidney Injury Trial (BAKIT) Workgroup in Perfusion