Ko Clifford Y, Maggard Melinda, Agustin Michelle
Center for Surgical Outcomes and Quality, Department of Surgery, David Geffen School of Medicine at UCLA , 10833 Le Conte Avenue, CHS Room 72-215, Los Angeles, CA 90095, USA.
World J Surg. 2005 Oct;29(10):1204-9. doi: 10.1007/s00268-005-7990-y.