1. Division of Public Health Sciences; Department of Surgery; Washington University School of Medicine; St. Louis MO USA
2. Alvin J. Siteman Cancer Center; Department of Surgery; Washington University School of Medicine; St. Louis MO USA
3. Division of Urologic Surgery; Department of Surgery; Washington University School of Medicine; St. Louis MO USA
4. Department of Anaesthesiology; University of Alabama at Birmingham; Birmingham AL USA