1. Department of Clinical Pharmacology; Faculty of Pharmaceutical Sciences; Fukuoka University; Fukuoka; Japan
2. Department of Health Chemistry; School of Pharmacy; Showa University; Tokyo; Japan
3. Choju Medical Institute; Fukushimura Hospital; Toyohashi; Aichi; Japan
4. Department of Host Defense; Research Institute for Microbial Diseases; Osaka University; Osaka; Japan