Received: 17 October 2020
Accepted: 13 January 2021
First Online: 3 February 2021
Ethics approval and consent to participate
: The research was approved by the Khartoum state Ministry of health research department on1/3/2018.All methods were carried out in accordance with relevant guidelines and regulations. Informed consent was obtained from all adult patients and parents of the adolescent.
: Not applicable.
: The authors declare that they have no competing interests.