Received: 25 June 2021
Accepted: 22 November 2021
First Online: 13 December 2021
: All methods were carried out in accordance with Declaration of Helsinki. This study was approved by the Research Ethics Review Committee of the Faculty of Pharmaceutical Sciences, the University of Tokyo (accession number 29–2, approved on July 3, 2017). Informed consent for study participation was given by answering and returning the questionnaire. The participants answered the questionnaire anonymously.
: Not applicable.
: KH and MM declare that they have no competing interests. HS (until March 2018), SH and SY are members of an endowed laboratory funded by 11 companies and organizations including pharmaceutical companies, pharmaceutical wholesalers and pharmacies, including Ain Pharmaciez inc. YY and IK are employees of Ain Pharmaciez inc. OM is a company officer of Ain Pharmaciez inc.