@article{articlec8403022,
title   = {Nerve block for the treatment of headaches and cranial neuralgias: a practical approach},
author = {Dach, Fabíola and Éckeli, Álan and Ferreira, Karen dos S. and Speciali, José Geraldo},
year = {2015},
doi = {10.1111/head.12516},
journal   = {Headache}
}