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Article History

Received: 3 October 2020

Accepted: 12 April 2021

First Online: 21 April 2021

Declarations

:

: This study was approved by the research ethics review committee of the National Institute of Public Health in Japan (National Institute of Public Health Research Ethics Review Committee No. NIPH-IBRA #12151). It has also been approved by the WHO-WPRO ethics review committee in July 2017. Participation in this study was entirely voluntary by employees, and the company did not force them to participate in this study. The questionnaire in this study was programmed to collect only epidemiological data and not include any personal data. The data was strictly managed by a personal information manager.

: Not applicable.

: The authors declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: FS reports consulting for Amgen, Eli Lilly and Otsuka. DWD reports the following conflicts within the past 12 months: Consulting: AEON, Amgen, Clexio, Cerecin, Allergan, Alder, Biohaven, Linpharma, Promius, Eli Lilly, eNeura, Novartis, Impel, Theranica, WL Gore, Nocira, XoC, Zosano, Upjohn (Division of Pfizer), Pieris, Revance, Equinox. Honoraria: CME Outfitters, Curry Rockefeller Group, DeepBench, Global Access Meetings, KLJ Associates, Majallin LLC, Medlogix Communications, Miller Medical Communications, Southern Headache Society (MAHEC), WebMD Health/Medscape, Wolters Kluwer, Oxford University Press, Cambridge University Press. Research Support: Department of Defense, National Institutes of Health, Henry Jackson Foundation, Sperling Foundation, American Migraine Foundation, Patient Centered Outcomes Research Institute (PCORI). Stock Options/Shareholder/Patents/Board of Directors: Aural analytics (options), ExSano (options), Palion (options), Healint (Options), Theranica (Options), Second Opinion/Mobile Health (Options), Epien (Options/Board), Nocira (options), Ontologics (Options/Board), King-Devick Technologies (Options/Board), Precon Health (Options/Board). Patent 17189376.1–1466:vTitle: Botulinum Toxin Dosage Regimen for Chronic Migraine Prophylaxis. TS, TS, MS, ST, YA and HM declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.