A Ozaki1, Y Shimada2, K Yamamoto3, A Hori4, T Sawano1, T Morita5, C Leppold6, T Tanimoto7, M Tsubokura5. 1. Department of Surgery, Minamisoma Municipal General Hospital, Fukushima 975-0033. 2. Department of Neurosurgery, Minamisoma Municipal General Hospital, Fukushima 975-0033. 3. Department of Obstetrics and Gynecology, Minamisoma Municipal General Hospital, Fukushima 975-0033. 4. Hori Mental Clinic, Fukushima 979-2335. 5. Department of Internal Medicine, Soma Central Hospital, Fukushima 976-0016, Japan. 6. Global Public Health Unit, School of Social and Political Science, University of Edinburgh, Edinburgh EH8 9LD, UK. 7. Department of Internal Medicine, Jyoban Hospital of Tokiwa Foundation, Fukushima 972-8322, Japan.