1 Department of Preventive Medicine and Epidemiology, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan. obara-t@hosp.tohoku.ac.jp.
2 Division of Molecular Epidemiology, Tohoku University Graduate School of Medicine, Sendai, Japan. obara-t@hosp.tohoku.ac.jp.
3 Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan. obara-t@hosp.tohoku.ac.jp.
4 Department of Preventive Medicine and Epidemiology, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan.
5 Division of Molecular Epidemiology, Tohoku University Graduate School of Medicine, Sendai, Japan.
6 Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan.
7 International Research Institute of Disaster Science, Sendai, Japan.