Open-Label, Multi-Dose, Pilot Safety Study of Injection of OnabotulinumtoxinA Toward the Otic Ganglion for the Treatment of Intractable Chronic Cluster Headache.

Crespi J, Bratbak D, Dodick DW, Matharu M, Solheim O, Gulati S, Berntsen EM, Tronvik E. Open-Label, Multi-Dose, Pilot Safety Study of Injection of OnabotulinumtoxinA Toward the Otic Ganglion for the Treatment of Intractable Chronic Cluster Headache. Headache. 2020 Jun 25.

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