[1] SUNNYBROOK MED CTR, DEPT GASTROENTEROL, TORONTO M4N 3M5, ONTARIO, CANADA
[2] HLTH SCI CTR, ST JOHNS, NB, CANADA
[3] ASTRA PHARM INC, MISSISSAUGA, ONTARIO, CANADA
[4] HOP MAISONNEUVE ROSEMONT, MONTREAL H1T 2M4, QUEBEC, CANADA
[5] UNIV LAVAL, HOTEL DIEU QUEBEC HOSP, DIV GASTROENTEROL, QUEBEC CITY G1K 7P4, QUEBEC, CANADA
[6] ROYAL ALEXANDRA HOSP, EDMONTON, ALBERTA, CANADA
[7] UNIV SHERBROOKE, CTR RECH PHYSIOPATHOL DIGEST, SHERBROOKE J1K 2R1, QUEBEC, CANADA
[8] DALHOUSIE UNIV, DIV GASTROENTEROL, HALIFAX B3H 4H2, NS, CANADA
[9] UNIV BRITISH COLUMBIA, HLTH SCI CTR, DIV GASTROENTEROL, VANCOUVER V6T 1W5, BC, CANADA
[10] ST BONIFACE GEN HOSP, WINNIPEG R2H 2A6, MANITOBA, CANADA
[11] WELLESLEY COLL, DEPT GASTROENTEROL, WELLESLEY, MA 02181 USA
[12] MCMASTER UNIV, MED CTR, DEPT GASTROENTEROL, HAMILTON L8S 4L8, ONTARIO, CANADA
[13] FOOTHILLS HOSP, DEPT GASTROENTEROL, CALGARY, ALBERTA, CANADA
[14] ROYAL COLUMBIAN HOSP, DEPT GASTROENTEROL, NEW WESTMINISTER, BC, CANADA
[15] ST MARYS HOSP, NEW WESTMINISTER, BC, CANADA