Received: 28 April 2021
Accepted: 7 June 2021
First Online: 16 July 2021
: The authors declare no conflict of interest.
: This observational retrospective study received expedited review as data were anonymous with no direct contact with subjects and was approved by the Institutional Review Board (IRB) at Hamad Medical Corporation, Medical Research Center; IRB# 16395/16). All methods were carried out in accordance with relevant guidelines and regulations. The need for informed consent was waived by the ethics committee at Hamad Medical Corporation.
: Not applicable.