1. Healthcare Research Institute, Wakunaga Pharmaceutical Co., Ltd., 1624 shimokoutachi, Koda-cho, Takata-gun, Hiroshima 729-1195, Japan; Wakunaga Agricultural Co., Ltd., 1624 shimokoutachi, Koda-cho, Takata-gun, Hiroshima 729-1195, Japan; Production Department, Wakunaga of America, Co., Ltd., 23501 Madero, Mission Viejo, California 92691; and Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, 3-1, 1-Chome, Kagamiyama, Higashihiroshimashi, Hiroshima,...