2 Minamisoma Municipal General Hospital, Fukushima, Japan; Teikyo University Graduate School of Public Health, Tokyo, Japan. Electronic address: ozakiakihiko@gmail.com.
3 Comenius University, Bratislava, Slovakia.
4 Semmelweis University, Budapest, Hungary.
5 University of Edinburgh, Edinburgh, UK; Minamisoma Municipal General Hospital, Fukushima, Japan.
6 Medical Governance Research Institute, Tokyo, Japan; Tokyo Medical and Dental University, Tokyo, Japan.
7 Jyoban Hospital of Tokiwa Foundation, Fukushima, Japan.