Received: 1 August 2020
Accepted: 4 September 2020
First Online: 11 September 2020
Ethics approval and consent to participate
: The participants provided their written informed consent to be included in the study. The study protocol was approved by the Ethics Committee at the Iraqi Ministry of Health and Environment (N268 on 31 May 2020).
: Not applicable.
: The authors declare that they have no competing interests.