Text and Data Mining valid from 2020-01-22
Received: 5 December 2019
Accepted: 29 December 2019
First Online: 22 January 2020
Ethics approval and consent to participate
: The study was approved by the local institutional review board (IRB), at Alhada Military Hospital # 2014, and the patients’ consent was waived for this retrospective observational study.
: Not applicable.
: The authors declare that they have no competing interests.