Received: 3 October 2019
Accepted: 31 March 2020
First Online: 19 April 2020
Ethics approval and consent to participate
: All study participants provided verbal consent. The reason: Since the samples used in this study were urine and feces, Participants will not be harmed or lost. They are willing to provide samples and the Institutional Review Board of Hamamatsu University School of Medicine reviewed and approved all procedures (including verbal consent) for the experimental specimens.
: Not applicable.
: The authors declare that they have no competing interests.