Received: 24 July 2019
Accepted: 4 June 2020
First Online: 15 June 2020
Ethics approval and consent to participate
: The study protocol was approved by the ethical committee of Medical Science of Medicine Faculty (FSS). Acceptance letter and convention letter was obtained from each hospital director. Information on the study was explained to the participants, including procedures, potential risks and benefits of the study. Confidentiality was maintained at all levels of the study by avoiding use of name and other identifiers.
: The authors declare there are no conflict of interests.