Funding for this research was provided by:
Tehran University of Medical Sciences and Health Services (9511468013)
Received: 9 October 2019
Accepted: 10 February 2020
First Online: 26 February 2020
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of Tehran University of Medical Sciences, Tehran, Iran (IR.TUMS.VCR.REC.1397.146). The aim of the study was explained to the women, and written informed consent was obtained from all participants.
: The authors declare that they have no competing interests.