title: Response.
authors.affiliation: Department of Medicine, Fort Belvoir Community Hospital, Fort Belvoir, Virginia, USA.
authors.forename: Ruben D
authors.initials: RD
authors.lastname: Acosta
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Scottsdale, Arizona, USA.
authors.forename: Neena S
authors.initials: NS
authors.lastname: Abraham
authors.affiliation: Department of Medicine, Indiana University Medical Center, Indianapolis, Indiana, USA.
authors.forename: John M
authors.initials: JM
authors.lastname: DeWitt