[1] Dalhousie Univ, Queen Elizabeth II Hlth Sci Ctr, Dept Med, Halifax, NS B3H 2Y9, Canada
[2] Univ Alberta, Dept Family Med, Edmonton, AB T6G 2M7, Canada
[3] Misericordia Community Hlth Ctr, Edmonton, AB, Canada
[4] McMaster Univ, Div Gastroenterol, Hamilton, ON, Canada
[5] Surrey G1 Clin Res, Guelph, ON, Canada
[6] McMaster Univ, Dept Med, Hamilton, ON L8S 4L8, Canada
[7] Hamilton Hlth Sci Corp, Div Gastroenterol, Hamilton, ON, Canada
[8] McGill Univ, Dept Med, Montreal, PQ H3A 2T5, Canada
[9] McGill Univ, Ctr Hlth, Div Gastroenterol, Montreal, PQ H3A 2T5, Canada
[10] Univ Laval, Dept Med, Quebec City, PQ G1K 7P4, Canada
[11] CHU Quebec, Dept Gastroenterol, Quebec City, PQ, Canada
[12] Univ Alberta, Dept Med, Edmonton, AB, Canada
[13] Mem Univ Newfoundland, Hlth Sci Ctr, St John, NF, Canada
[14] Surrey Mem Hosp, Surrey, BC, Canada
[15] Dalhousie Univ, Coll Pharm, Halifax, NS B3H 3J5, Canada
[16] AstraZeneca Canada Inc, Mississauga, ON, Canada