Text and Data Mining valid from 2019-11-29
Received: 28 November 2018
Accepted: 21 November 2019
First Online: 29 November 2019
Ethics approval and consent to participate
: Permission for conducting this research was granted by the institutional review board, University of Khartoum faculty of Medicine prior to study initiation, and from general directors of Al Saud and Saad Abul-Ella hospitals, Khartoum, Sudan. Ethical approval was obtained from the State Ministry of Health in Khartoum state, Sudan. Each respondent’s written consent was obtained prior to participation.
: Not applicable.
: The authors declare that they have no competing interests.