@article{article019dcb10,
title   = {Efficacy of the greater occipital nerve block for cervicogenic headache: comparing classical and subcompartmental techniques},
author = {Lauretti, Gabriela Rocha and Corrêa, Selma Westphal Rodrigues Oléa and Mattos, Anita Leocádia de},
year = {2015},
doi = {10.1111/papr.12228},
journal   = {Pain Practice}
}