George Lynn Cross Research Professor Emeritus
President’s Associates Presidential Professor
University of Oklahoma Health Sciences Center
Senior VA Career Scientist (Retired)
Editor-in Chief (EIC) Journal of Pharmacology and Experimental Therapeutics
Joint Chair, Rome V: Fundamentals of Neurogastroenterology: Basic Science
Past Director of the American Neurogastroenterology and Motility Society Institute
Past Presbyterian Health Foundation Chair in Neurosciences , University of Oklahoma Health Sciences Center
Past-Chair, Neuropharmacology Division, American Society for Pharmacology & Experimental Therapeutics (ASPET)
Past President, American Neurogastroenterology and Motility Society