Text and Data Mining valid from 2019-09-11
Received: 24 December 2018
Accepted: 4 September 2019
First Online: 11 September 2019
Ethics approval and consent to participate
: The study was ethically approved by the Research and Ethical Review Board of Debre Markos University. Permission was received from the hospital administration to utilize the data for research purpose. Other patient identifier information were kept confidential.
: Not applicable.
: The authors declare that they have no competing interests.