Myoga, Mai
,
Tsuji, Mayumi
Tanaka, Rie
Shibata, Eiji
Askew, David J.
Aiko, Yukiyo
Senju, Ayako
Kawamoto, Toshihiro
Hachisuga, Toru
Araki, Shunsuke
Kusuhara, Koichi
Morokuma, Seiichi
Sanefuji, Masafumi
Article History
Received: 22 April 2019
Accepted: 26 November 2019
First Online: 9 December 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board (IRB) of the University of Occupational and Environmental Health. The nationwide JECS protocol was approved by the Institutional Review Boardof the Japan National Institute for Environmental Studies, and by the IRBs at all other 23 participating institutions (See Additional fileInternalRef removed). The JECS is conducted in accordance with the Declaration of Helsinki and other nationally valid regulation. Written informed consent was obtained from participants.
: Not applicable.
: The authors declare that they have no competing interests.