1. U.S. Department of Agriculture–Agricultural Research Service (USDA-ARS), Beltsville Agricultural Research Center, Food Quality Laboratory, Building 303, BARC-East, Beltsville, MD 20705-2350, U.S.A. Mention of trade names or commercial products is solely for the purpose of providing specific information and does not imply endorsement or recommendation by the USDA.
2. USDA-ARS, Northeast Area Office of the Director, Statistics Group, Beltsville, MD, U.S.A.