1. Division of Nutritional Sciences, Human Metabolic Research Unit Cornell University Ithaca New York USA
2. Obstetrics and Gynecology, College of Medicine University of Saskatchewan Saskatoon Saskatchewan Canada
3. Cornell Statistical Consulting Unit Cornell University Ithaca New York USA
4. School of Nutrition and Dietetics Acadia University Wolfville Nova Scotia Canada
5. College of Kinesiology, Physical Activity Complex University of Saskatchewan Saskatoon Saskatchewan Canada