title: Response.
authors.affiliation: Department of Gastroenterology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
authors.forename: Mouen A
authors.initials: MA
authors.lastname: Khashab
authors.affiliation: Department of Gastroenterology, Indiana University Health Medical Center, Indianapolis, Indiana, USA.
authors.forename: John M
authors.initials: JM
authors.lastname: Dewitt