by Sekizawa, K, Okubo, T
Published in Kokyū to junkan (01.05.1982)

by Homma, Toshiaki, Ueno, Takahiro, Sekizawa, Kiyohisa, Tanaka, Akiyo, Hirata, Miyuki
Published in Journal of occupational health (01.05.2003)

by Sasaki, Hidetada, Sekizawa, Kiyoshisa
Published in Nihon Rōnen Igakkai zasshi (1993)

by Sato, N., Meguro, K., Yamaguchi, S., Sekizawa, K., Yamaya, M., Sasaki, H.
Published in Nihon Rōnen Igakkai zasshi (1994)

by Sato, N., Fujimoto, H., Meguro, K., Sekizawa, K., Yamaya, M., Sasaki, H.
Published in Nihon Rōnen Igakkai zasshi (1993)

by Meguro, Ken-ichi, Yamaguchi, Tomo, Doi, Chika, Nakamura, Takashi, Sekizawa, Kiyohisa, Sasaki, Hidetada
Published in Nihon Rōnen Igakkai zasshi (1992)