Khosravani, Vahid
Najafi, Mahmoud
Mohammadzadeh, Ali
Article History
First Online: 1 October 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflicts of interest. The study did not receive external research funding.
: All procedures in this study were performed in accordance with the 1989 revision of the Helsinki Declaration.
: The informed consent form was obtained from all participants.