Received: 29 March 2021
Accepted: 2 June 2021
First Online: 9 June 2021
: This retrospective research was approved by the Clinical Research Ethics Committee of Japanese Red Cross Nagoya Daini Hospital (reference no.1483). The study data were anonymized before use. As this case series does not contain any personal information that could lead to patient identification, the requirement for informed consent was waived by the ethics committee.
: Not applicable.
: The authors declare that they have no competing interests.