Received: 27 January 2021
Accepted: 16 April 2021
First Online: 27 April 2021
: All methods were carried out in accordance with relevant guidelines and regulations. The study was approved by the National Research Ethics Committee (20-NREC-COV-099). The requirement for informed consent was waived by review board Health Research Declaration Committee (20–025-AF1/COV).
: Not applicable.
: The authors declare that they have no competing interests.