1 Division of Gastroenterology (Dubé, Bielawska), Department of Medicine, University of Ottawa, Ont.; Ontario Health (Cancer Care Ontario) (Dubé), Toronto, Ont. bbielawska@toh.ca.
2 Division of Gastroenterology (Dubé, Bielawska), Department of Medicine, University of Ottawa, Ont.; Ontario Health (Cancer Care Ontario) (Dubé), Toronto, Ont.