Baygi, Fereshteh
Herttua, Kimmo
Sheidaei, Ali
Ahmadvand, Alireza
Jensen, Olaf Chresten
Article History
Received: 5 August 2019
Accepted: 5 March 2020
First Online: 5 April 2020
Ethics approval and consent to participate
: This study was approved by the Ethics-in-Research Commission of Iran University of Medical Sciences (No. 25800). Written informed consent was obtained from all male seafarers who were referred to health unit of the company for routine annual medical examination during the study period.
: Not applicable.
: The authors declare that they have no competing interests.