Kokubun Shoichi
Tohoku University
Naoki Morozumi
Sendai Nishitaga National Hospital
Kanno Haruo
T Aizawa
Takashi Kusakabe
Gunma Chuo Hospital
Hiroshi Ozawa
Tohoku Medical and Pharmaceutical University
Tetsuro Sato
Waseda University
Itoi Eiji
Yasuhisa Tanaka
University of Occupational and Environmental Health Japan
