Wahl TS, Graham LA, Morris MS, Richman JS, Hollis RH, Jones CE, Itani KM, Wagner TH, Mull HJ, Whittle JC, Telford GL, Rosen AK, Copeland LA, Burns EA, Hawn MT. Association Between Preoperative Proteinuria and Postoperative Acute Kidney Injury and Readmission. JAMA Surg. 2018 09 01; 153(9):e182009.