Text and Data Mining valid from 2020-03-06
Received: 14 October 2019
Accepted: 21 February 2020
First Online: 6 March 2020
Ethics approval and consent to participate
: The study received ethical approval from the Research Board at the Faculty of Medicine, University of Gadarif, Sudan. The reference number is 2016/39. Written informed consent was obtained from all the enrolled patients.
: Not applicable.
: The authors declare that they have no competing interests.