Risk of bladder cancer in male Japanese workers exposed to ortho-toluidine and other aromatic amines

Makiko Nakano, Takafumi Shinagawa, Yoko Eitaki, Kazuyuki Omae, Ayano Takeuchi, Satoko Iwasawa, Kota Fukai, Noriyuki Yoshioka, Shigeru Tanaka, Shigeki Koda, Tomotaka Sobue, Toru Takebayashi