Friedman BW, Irizarry E, Williams A, Solorzano C, et al. A Randomized, Double-Dummy, Emergency Department-Based Study of Greater Occipital
Nerve Block With Bupivacaine vs Intravenous Metoclopramide for Treatment of
Migraine. Headache 2020 Sep 27. doi: 10.1111/head.13961.
PMID: 32981043