Imai, Shungo
Momo, Kenji
Kashiwagi, Hitoshi
Miyai, Takayuki
Sugawara, Mitsuru
Takekuma, Yoh https://orcid.org/0000-0002-4325-0785
Article History
Received: 6 March 2020
Accepted: 11 August 2020
First Online: 18 August 2020
Ethics approval and consent to participate
: The institutional review board of the Faculty of Pharmaceutical Sciences of Hokkaido University waived the requirement for informed consent of this study because the JMDC claims data base is anonymized.
: Not applicable.
: The authors declare no conflict of interests.