Received: 15 January 2020
Accepted: 2 July 2020
First Online: 14 July 2020
Ethics approval and consent to participate
: The institutional review board (IRB) committee of Makassed General Hospital, Beirut, Lebanon, granted this study ethical approval. The IRB committee waived the requirement of informed consent from patients due to the retrospective nature of this study. During the data collection phase, only subject case numbers were included. At a later stage, a different number was assigned to each of our cases to safeguard subject privacy. The contributing authors only performed data entry and analysis as well as the drafting of the manuscript.
: Not applicable.
: The authors declare that they have no competing interests.