1. Department of Pharmacy, Sapporo City General Hospital, Kita-1-jo, Nishi-9-chome, Chuo-ku, Sapporo 060
2. Faculty of Pharmaceutical Sciences, Higashi-Nippon-Gakuen Univerity, Ishikari-Tobetsu, Hokkaido 061–02
3. Department of Pharmacy, Hokkaido University Hospital, School of Medicine, Hokkaido University, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060
4. Gifu College of Pharmacy, Mitahora, Gifu 502, Japan