1Division of Gastroenterology, Department of Medicine, McGill University, Montreal, Quebec, Canada;
2Department of Cardiovascular Diseases, Electrophysiology, Mayo Clinic, Rochester, Minnesota, USA;
3Department of Medicine, St. Joseph's Healthcare Hamilton and McMaster University, Hamilton, Ontario, Canada;
4Yale School of Medicine, New Haven, CT, and VA Connecticut Healthcare System, West Haven, Connecticut, USA;
5Division of Gastroenterology, Department of Medicine, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada;
6Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Scottsdale, Arizona, USA.
Correspondence: Alan N. Barkun, MD, MSc (Epi), FACG, CAGF. E-mail: [email protected].