1. Least Cost Formulations, Ltd, 824 Timberlake Dr, Virginia Beach, VA 23464 Old Dominion University, Department of Mathematics and Statistics, Norfolk, VA 23529
2. U.S. Department of Agriculture, Agricultural Research Center, Beltsville Human Nutrition Research Center, Food Composition and Methods Development Laboratory, Bldg 161 BARC-East, Beltsville, MD 20705