Received: 12 April 2021
Accepted: 11 September 2021
First Online: 20 September 2021
: The study was approved by the ethical committee of King Abdulaziz university hospital. Written consents from the patients ′ legal guardians were taken retrospectively on admission for potential participation in future research and publication. (committee’s reference number: 763-21).
: Not applicable.
: The authors declare that they have no competing interests.