@article{articleada6327a,
title   = {Study of the use of analgesics by patients with headache at a specialized outpatient clinic (ACEF)},
author = {Chagas, Olga Francis Pita and Dach, Fabíola and Bigal, Marcelo E. and Silva, Mayko Olinto Amaral da and Speciali, José Geraldo},
year = {2015},
doi = {10.1590/0004-282X20150072},
journal   = {Arquivos de Neuro-Psiquiatria}
}