Response to Paterson et al.

1GI Motility Program, Division of Gastroenterology, Department of Medicine, Cedars-Sinai, Los Angeles, California, USA 2Division of Gastroenterology, Department of Medicine, University of Calgary, Calgary, Alberta, Canada 3Division of Gastroenterology and Hepatology, Augusta University, Augusta, Georgia, USA Correspondence: Ali Rezaie, MD, MSc, FRCP(C), Assistant Professor, Assistant Director, GI Motility Program, Cedars-Sinai Medical Center, Medicine, 8730 Alden Drive, Suite 2E, Los Angeles, California 90048, USA. E-mail: [email protected] Ali Rezaie reports support from the following sources for consultation: Commonwealth Laboratories, Actavis, Salix Pharmaceuticals and Synergy Pharmaceuticals. Michelle Buresi reports no conflicts of interest. Satish Rao reports support from the following sources for teaching, research, and consultation, outside the submitted work: Forest Laboratories, Hollister, Ironwood Pharmaceuticals, Sucampo Pharmaceuticals, In Control Medical, Vibrant, American Medical Systems, Sun Sweet Corporation, Synergy Pharmaceuticals, Salix Pharmaceuticals, and Ventrus Laboratories.