1. Department of Pharmacy , Nerima Hikarigaoka Hospital , Tokyo , Japan
2. Department of Internal Medicine , Nerima Hikarigaoka Hospital , Tokyo , Japan
3. Department of Rehabilitation , Nerima Hikarigaoka Hospital , Tokyo , Japan
4. Division of Emergency and General Medicine , Tokyo Metropolitan Tama Medical Center , Tokyo , Japan
5. Department of Patient Safety , Nagoya University , Nagoya , Japan
6. General Medicine Center , Shimane University , Shimane , Japan
7. Department of Medicine , NYU Grossman School of Medicine , New York , NY , USA