Article History
Received: 24 October 2018
Accepted: 29 November 2018
First Online: 5 December 2018
Compliance with ethical standards
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: Drs. Sakuma, Kishi, and Iwata declare that they have no direct conflicts of interest relevant to this study.Dr. Sakuma has received speaker’s honoraria from Otsuka.Dr. Kishi has received speaker’s honoraria from Daiichi Sankyo, Dainippon Sumitomo, Eisai, Janssen, Otsuka, Meiji, MSD, Tanabe-Mitsubishi, and Yoshitomi and has received a Health Labour Sciences Research Grant and a Fujita Health University School of Medicine research grant.Dr. Iwata has received speaker’s honoraria from Astellas, Dainippon Sumitomo, Eli Lilly, GlaxoSmithKline, Janssen, Yoshitomi, Otsuka, Meiji, Shionogi, Novartis, and Pfizer and has received research grants from GlaxoSmithKline, Meiji, and Otsuka.