1 Department of Urology, USC Institute of Urology, Keck School of Medicine, Los Angeles, CA.
2 Clinic of Anesthesiology, University Hospital Basel, Basel, Switzerland.
3 Basel Institute for Clinical Epidemiology and Biostatistics, University of Basel, Basel, Switzerland.
4 Department of Urology, St James's University Hospital, Leeds, UK.
5 Department of Colorectal Surgery, Yeovil District Hospital Foundation Trust, Yeovil, UK.
6 Division of Trauma, Emergency Surgery and Surgical Critical Care, Department of Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA.