Text and Data Mining valid from 2019-03-12
Received: 25 October 2018
Accepted: 21 February 2019
First Online: 12 March 2019
: All research was conducted according to the Regulations for the Care and Use of Laboratory Animals of Ibaraki Prefectural Institute of Public Health. The animal experimentation protocol was approved by the President of Ibaraki Prefectural Institute of Public Health based on the judgment of the Institutional Animal Care and Use Committee of Ibaraki Prefectural Institute of Public Health. We obtained the certificate of consent from the pig’s owner prior to experiments.
: Not applicable.
: The authors declare that they have no competing interests.
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