Affiliation: | (1) Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku, 141 Tokyo, Japan;(2) Showa College of Pharmaceutical Sciences, 3-chome, Higashitamagawa-gakuen, Machida-shi, 194 Tokyo, Japan;(3) Tokyo Metropolitan Tama Geriatric Hospital, 1-7-1 Aoba-cho, Higashi-Murayama-shi, 187 Tokyo, Japan |