1. Clinical Chemistry Division, Provincial Laboratory Services, Queen Elizabeth Hospital, Charlottetown, Canada;
2. Department of Pathology, Dalhousie University, Halifax, Canada;
3. CHU Ste-Justine Research Centre, Gastroenterology, Hepatology and Nutrition Division, Montreal, Canada;
4. Faculty of Medicine, Department of Biochemistry, University of Montreal, Montreal, Canada;
5. Department of Pathology and Laboratory Medicine, Nova Scotia Health Authority (NSHA), Halifax, Canada;
6. Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Canada;
7. Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada