Received: 16 April 2021
Accepted: 4 June 2021
First Online: 20 July 2021
: Ethics approval was obtained from the Fukushima Medical University Ethics Committee (approval number 2019–070) and participants freely gave informed consent. All methods were carried out in accordance with relevant guidelines and regulations.The authors declare that they have no competing interest.
: Not applicable.
: The authors declare that they have no competing interest.