1. Division of Internal Medicine, Department of Medicine, University of Calgary, Calgary, Alberta, Canada
2. Divison of Endocrinology and Metabolism, Department of Medicine, University of Calgary, Calgary, Alberta, Canada
3. Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta, Canada
4. Divison of Endocrine surgery, Surgical Oncology and Endocrinology, Department of Surgery, University of Calgary, Calgary, Alberta, Canada
5. Department of Cardiac Sciences, University of Calgary, Calgary, Alberta, Canada