1. Research Unit/Frontier, Sohyaku Innovative Research Division, Mitsubishi Tanabe Pharma Corporation, Fujisawa‑shi, Kanagawa 251‑8555, Japan
2. Hitachi Chemical Co. America, Ltd., R&D Center, Irvine, CA 92617, USA
3. Medical Affairs Department, Ikuyaku Integrated Value Development Division, Mitsubishi Tanabe Pharma Corporation, Osaka 541‑8505, Japan
4. Medical Intelligence Department, Ikuyaku Integrated Value Development Division, Mitsubishi Tanabe Pharma Corporation, Tokyo 103‑8405, Japan