Received: 13 February 2021
Accepted: 16 March 2021
First Online: 8 April 2021
: The study was approved by the Institutional Review Board of King Abdullah International Medical Research Center, Ministry of National Guard-Health Affairs, Riyadh, Kingdom of Saudi Arabia (approval number RC20/457/R). Patient confidentiality was ensured, and the data were collected and used by only the research team members. Serial numbers were used instead of medical record numbers to ensure anonymity. Due to the retrospective nature of the study, and the use of anonymized patient data, the requirement for informed consent was waived.
: Not applicable.
: The authors declare that they have no competing interests.