Teja, Bijan, Dana Raub, Sabine Friedrich, Paul Rostin, Maria D Patroc\ \ inio, Jeffrey C Schneider, Changyu Shen, et al. 2020. “Incidence, Prediction, and Causes of Unplanned 30-Day Hospital Admission After Ambulatory Procedures”. Anesthesia & Analgesia 131 (2): 497-507.