Matsui, Akiko
Morimoto, Michihiro
Suzuki, Hiroshi
Laurent, Thomas
Fujimoto, Yoko
Inagaki, Yoshimi
Funding for this research was provided by:
Pfizer Japan
Article History
First Online: 18 June 2018
Compliance with Ethical Standards
: This retrospective study used a preexisting de-identified claims database. The Japanese Ethical Guidelines for Medical and Health Research Involving Human Subjects do not apply to a study exclusively using the de-identified data. Therefore, this study was not obligated to apply for the ethical approval by institutional review board and informed consent.
: Financial support was provided by Pfizer Japan, Inc.
: AM, MM, HS, and YF are employees of Pfizer Japan, Inc. TL is an employee of Clinical Study Support, Inc. YI declares no conflict of interest.
: Data are purchased from Medical Data Vision, Co., Ltd (MDV, Tokyo, Japan). For inquiries on the dataset analyzed in this study, please contact MDV ().