1. a Seto Public Health Center , Aichi Prefecture, 38-1, Mitsuke-cho, Seto, Aichi, 489-0808, Japan
2. b Aichi Prefectural Institute of Public Health , 7-6, Nagare, Tsuji-machi, Kita-ku, Nagoya, 462-8576, Japan
3. c Kasugai Public Health Center , Aichi Prefecture, 2-31, Kashiwai-cho, Kasugai, Aichi, 486-0927, Japan
4. d Okazaki Public Health Center , Aichi Prefecture, 3-30, Kosei-dorinishi, Okazaki, Aichi, 444-8545, Japan