Primary study · included by 1 review

Onabotulinum toxin A block of the sphenopalatine ganglion in patients with persistent idiopathic facial pain: a randomized, triple-blind, placebo-controlled, exploratory, cross-over study.

Jamtøy 2023 · Jamtøy Kent A, Thorstensen Wenche M, Stovner Lars J, et al. · Cephalalgia : an international journal of headache · 2023

Included by

A meta-analysis of pain intensity changes after placebo interventions in facial pain.

Non-Cochrane · other · 2026 · cited as Jamtøy 2023 · Results para 1 included-study citation list (ref 59); 116 refs cited for 115 stated studies; Supplemental Tables 1 and 2 not available

The review does not say which of its outcomes this study informs.

1 including review in total.