@article{andré caetano2019of,
  title={Underuse of Prophylactic Treatment Among Portuguese Patients with Primary Headache: A Retrospective Observational Study},
  author={andré caetano,filipa ladeira,marcelo mendonça,raquel barbosa,miguel pinto,maria rita pelejão,miguel viana-baptista},
  journal={Journal of Oral & Facial Pain and Headache},
  volume={33},
  number={3},
  pages={331--336},
  doi = {10.11607/ofph.2122},
  year={2019}
}