Mahmoodi, Fahimeh
Rezatofighi, Seyedeh Elham http://orcid.org/0000-0003-1373-7346
Akhoond, Mohammad Reza
Article History
Received: 19 July 2020
Accepted: 23 November 2020
First Online: 1 December 2020
Ethics approval and consent to participate
: The study was approved by Ethics Committee of Shahid Chamran University of Ahvaz (No: EE/99.24.3.88342/ExternalRef removed). Because the participants were children under 3 years old, parents or guardian were asked to read, accept and sign an informed consent form before any information was collected.
: Not applicable.
: The authors declare that they have no competing interests.