Article History
Received: 24 December 2019
Accepted: 17 February 2021
First Online: 27 February 2021
Ethics approval and consent to participate
: This study was approved by our hospital’s institutional review board. Owing to the retrospective design of the study, the need for informed consent was waived. The study was conducted according to the principles of the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interest.