North Texas Chapter North Texas Chapter of ACS Mark Watson, MD 2011-12 President President-Elect Ari Halldorsson, MD Vice President Roderich Schwarz, MD Secretary-Treasurer Past Presidents G. Thomas Shires, III, MD Joseph Kuhn, MD Joseph Minei, MD Governors Ernest Dunn, MD Peter Rutledge, MD Robert Rege, MD Program Chairman Michael Truitt, MD Committee on Trauma Chair John Griswold, MD Cancer Liaison Physician Catherine Ann Ronaghan, MD Councilors Christopher Bell, MD David Arnold, MD Peter Beitsch, MD Specialty Representatives Ob-Gyn Mitchell L. Willens, MD Colorectal Surgery Warren Lichliter, MD Head and Neck Surgery John C. O’Brien, MD Thoracic Surgery Hal Urschel, MD Urology Gary Lemack, MD Pediatric Surgery Specialty Representative Joseph Murphy, MD Chapter Administrator Nonie Lowry