1 Division of Public Health, Hygiene and Epidemiology, Tohoku Medical and Pharmaceutical University Faculty of Medicine, Sendai, Miyagi, Japan.
2 Department of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan.
3 Department of Pharmacy, Tohoku Medical and Pharmaceutical University Hospital, Sendai, Miyagi, Japan.
4 Division of Public Health, Hygiene and Epidemiology, Tohoku Medical and Pharmaceutical University Faculty of Medicine, Sendai, Miyagi, Japan. hmetoki@tohoku-mpu.ac.jp.
5 Department of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan. hmetoki@tohoku-mpu.ac.jp.