Dr. Brian E. Lacy is a board certified gastroenterologist who focuses his research and clinical interests on disorders of gastrointestinal motility. Dr. Lacy’s areas of expertise include gastroesophageal reflux disease, dysphagia, achalasia, dyspepsia, gastroparesis, irritable bowel syndrome, constipation, intestinal pseudo-obstruction and visceral pain. Dr. Lacy is the author of over 165 peer-reviewed articles on gastrointestinal motility disorders and functional bowel disorders, has written and/or edited 6 books on gastrointestinal motility disorders and functional bowel disorders, and has written multiple text book chapters. Dr. Lacy is the current co-Editor in Chief of the American Journal of Gastroenterology. He is the former Editor in Chief of Clinical and Translational Gastroenterology. Dr. Lacy was the co-Chairman for the Rome IV Committee on Functional Bowel Disorders.