1. National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan, Yasui Kikai Corporation, 2-2-13, Nakano-cho, Miyakojima-ku, Osaka 534-0027, Japan, Showa Pharmaceutical University, 3-3165, Higashitamagawagakuen, Machida, Tokyo 194-8543, Japan, GeneScan USA, Inc., 2315 North Causeway Boulevard, Suite 200, Metairie, Louisiana 70001, and National Food Research Institute, 2-1-12, Kannondai, Tsukuba, Ibaraki 305-8642, Japan