Funding for this research was provided by:
Japan Society for the Promotion of Science (15K08225)
Smoking Research Foundation
Text and Data Mining valid from 2019-01-01
Received: 1 July 2018
Accepted: 18 December 2018
First Online: 1 January 2019
Compliance with ethical standards
: The authors declare that they have no conflicts of interest.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. This article does not contain any studies performed by any of the authors with human participants.