1. From the Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada; The Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada; The Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada; Department of Paediatrics and Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada; and Fresenius Kabi, Bad Homburg, Germany