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the authors by Karen Pemberton, PhD, of Evidence Scientifi c Solutions, Inc, and funded by Allergan plc. All authors met the ICMJE authorship criteria. Neither honoraria nor payments were made for authorship. Financial arrangements of the authors with companies whose products may be related to the present report are listed below, as declared by the authors. DF has received research funding from Allergan plc; MG is a consultant for Allergan and Ispen; HK has received grant/research support from Allergan plc and Ipsen; KEA has received honoraria from Haymarket Medical, Johns Hopkins University, and the North American Neurotoxin Association, and is a consultant/ advisory board member for North American Neurotoxin Association and the International Neurotoxin Association; CL, EM, and RD are employees and shareholders of Allergan plc.