Received: 15 October 2020
Revised: 13 April 2021
Accepted: 23 April 2021
First Online: 18 May 2021
Compliance with ethical standards
: The authors declare no competing interests.
: The retrospective study was performed in accordance with the Declaration of Helsinki. Review board approval was acquired; informed consent for the retrospective study was obtained from all the participants.
: Informed consent for the submission and publication of the study was obtained from all individual participants included.