1. USDA-ARS Western Wheat Quality Laboratory; Washington State University; E-202 Food Quality Building Pullman WA 99164-6394 USA
2. Department of Crop and Soil Sciences; College of Agricultural, Human, and Natural Resource Sciences; Washington State University; Pullman WA 99164-6420 USA (affiliated with the USDA-ARS Western Wheat Quality Laboratory)
3. USDA-ARS Beltsville Human Nutrition Research Center; 10300 Baltimore Blvd BARC-EAST Beltsville MD 20705 USA