Funding for this research was provided by:
Grants-in-Aid for Scientific Research (17K09963)
Received: 7 June 2020
Accepted: 18 October 2020
First Online: 9 November 2020
Ethics approval and consent to participate
: All studies involving human samples were performed under institutional review board-approved protocols at Kansai Medical University (No. 2014110 and 2017208). All subjects provided written informed consent in accordance with the recommendations of the International Conference on Harmonization Guidelines for Good Clinical Practice and the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.