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Article History

Received: 2 May 2019

Accepted: 5 July 2019

First Online: 24 July 2019

Ethics approval and consent to participate

: The study protocols were reviewed and approved by the appropriate institutional review board for each of the study sites. The studies were conducted according to Good Clinical Practice and the Declaration of Helsinki guidelines. Patients provided written informed consent before undergoing study procedures.

: Not applicable.

: LSL is an employee of Eli Lilly and Company and/or one of its subsidiaries, Indianapolis, IN, USA and is a minor stockholder of Eli Lilly and Company.JA has received personal compensation from Alder, Amgen, Allergan, Avanir, Avent, electroCore, Eli Lilly, Impel, Miller Communications, Promius, Satsuma, Teva for consulting and speaking. She has served as a section editor for Current Pain and Headache Reports. She has received research support from the American Migraine Foundation and the ARMR registry.JS received personal compensation from Acorda, Alder, Allergan, Amgen, Avanir, Depomed, electroCore, Eli Lilly, Novartis, Pernix, Promius, Supernus, Teva, and Upsher-Smith for consulting and speaking. He has received research support from Alder, Allergan, Amgen, electroCore, Eli Lilly, and Teva.SB is an employee of Eli Lilly and Company and/or one of its subsidiaries, Indianapolis, IN, USA and is a minor stockholder of Eli Lilly and Company.HPH is an employee of Eli Lilly and Company and/or one of its subsidiaries, Indianapolis, IN, USA and is a minor stockholder of Eli Lilly and Company.MP is an employee of Eli Lilly and Company and/or one of its subsidiaries, Indianapolis, IN, USA and is a minor stockholder of Eli Lilly and Company.JHK is an employee of Eli Lilly and Company and/or one of its subsidiaries, Indianapolis, IN, USA and is a minor stockholder of Eli Lilly and Company.