title: Reply.
authors.affiliation: The Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, New York.
authors.forename: Shailja C
authors.initials: SC
authors.lastname: Shah
authors.affiliation: The Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, New York.
authors.forename: Jean-Frederic
authors.initials: JF
authors.lastname: Colombel
authors.affiliation: The Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, New York.
authors.forename: Bruce E
authors.initials: BE
authors.lastname: Sands
authors.affiliation: McMaster University Medical Centre, Hamilton, Ontario, Canada.
authors.forename: Neeraj
authors.initials: N
authors.lastname: Narula