Received: 9 November 2019
Accepted: 15 June 2020
First Online: 19 June 2020
Ethics approval and consent to participate
: The ethical standards of the study were approved by the Ethics Committees for Biomedical Research (CERB), Faculty of Medicine and Pharmacy of Rabat; clearance number-IORG0006594. Informed consent was obtained from all the participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.