Norm Campbell1, Andrew Pipe2, Tara Duhaney3. 1. Department of Physiology and Pharmacology and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada. Electronic address: ncampbel@ucalgary.ca. 2. Division of Prevention and Rehabilitation, University of Ottawa Heart Institute, University of Ottawa, Ottawa, Ontario, Canada. 3. Canadian Hypertension Advisory Committee, University of Calgary, Calgary, Alberta, Canada.