Division of Gastroenterology, Department of Medicine, University of Calgary, TRW 6D19, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada. Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada. Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, NSW, Australia. Westmead Clinical School, University of Sydney, Sydney, NSW, Australia. Forzani & MacPhail Colon Cancer Screening Centre, Alberta Health Services, Calgary, AB, Canada. Division of Gastroenterology, Department of Medicine, University of Calgary, TRW 6D19, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada. nauzer.forbes@ucalgary.ca. Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada. nauzer.forbes@ucalgary.ca. Forzani & MacPhail Colon Cancer Screening Centre, Alberta Health Services, Calgary, AB, Canada. nauzer.forbes@ucalgary.ca.