Alaagib, Nouralsalhin Abdalhamid
Musa, Omer Abdelaziz
Saeed, Amal Mahmoud
Article History
Received: 1 April 2019
Accepted: 9 September 2019
First Online: 23 September 2019
Ethics approval and consent to participate
: This study was approved by the ethical committee of Faculty of Medicine University of Khartoum reference NO: Ref: FM/DO/EC. All participants signed a written informed consent form.
: Not applicable.
: The authors declare that they have no competing interests.