1. University of Manitoba College of Medicine, Max Rady Faculty of Health Sciences, 119 Main Street South, Winnipeg, MB R3E 3P5, Canada.
2. Providence Medical Group, P.O. Box 421, Liberty Lake, WA 99019-0421, USA.
3. SciMar Ltd., 119 Main Street South, Dauphin, MB R7N 1K4, Canada.