Funding for this research was provided by:
Japan Society for the Promotion of Science (KAKENHI 26670290)
Smoking Research Foundation (Smoking Research Foundation)
Received: 6 December 2020
Accepted: 19 April 2021
First Online: 26 April 2021
: The experiments were conducted in accordance with guiding principles for the care and use of animals in the field of physiological sciences published by the Physiological Society of Japan (2015) and were approved by the institutional Experimental Animal Research Committee of Kagoshima University (MD13007, MD16092, MD17105).
: Not applicable.
: The authors declare that they have no competing interests.