Received: 19 May 2020
Accepted: 16 February 2021
First Online: 27 February 2021
Ethics approval and consent to participate
: All the procedures applied to the participants were in accordance with the ethical standards of the Isfahan University of Medical Sciences and written consent of the voluntary participants fully informed of the study. It was also explained that their refusal to participate in the study would have no effect on their routine pregnancy care.
: No applicable.
: The authors declare that they have no conflict of interest.