1. Faculty of Nursing and Nutrition, Siebold University of Nagasaki, Nagasaki 851-2195, Japan; Faculty of Agriculture, Tamagawa University, Tokyo 194-8610, Japan; Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto 862-8502, Japan; Mitsubishi Kagaku Bio-Clinical Laboratories Inc., Tokyo 174-8555, Japan; Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama 226-3501, Japan; and Professor Emeritus, Kyushu University, Fukuoka 813-0043...