Received: 18 March 2022
Accepted: 4 August 2022
First Online: 10 August 2022
: The research was approved by the IOC and by the ethics committee of Tokyo Medical and Dental University (#M2021-053). All methods were carried out in accordance with relevant guidelines and regulations. Informed consent was waived with the approval of the ethics committee of Tokyo Medical and Dental University, as all data in our epidemiological study were anonymised and unidentifiable.
: Not applicable.
: The authors have no conflicts of interest to disclose.