1. Department of Clinical Pharmacology and Therapeutics, Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0215, Japan.
2. Department of Pharmacy, University of the Ryukyus Hospital, Okinawa 903-0215, Japan.
3. Division of Clinical Laboratory and Blood Transfusion, University of the Ryukyus Hospital, Okinawa 903-0215, Japan.
4. Department of Pharmacy, Kitasato University Hospital, Kanagawa 252-0329, Japan.
5. Kitasato University Hospital Clinical Trial Center, Kanagawa 252-0329, Japan.