Daniel P Geisler Program Director and ChiefColorectal Surgery Saint Vincent Health CenterAllegheny Health Network Colorectal Physicians & Surgeons of PennsylvaniaErie, PADeborah S Keller, MS MD Penn StateHershey Medical CenterHershey, PAEric M Haas, MD FACS FASCRS Department of SurgeryDivision of Minimally Invasive Colon and Rectal SurgeryColorectal Surgical Associates LLP LTD Houston, TX