@article{jevoux_1997,  title={Primary chronic daily headache: a report on 52 cases},  volume={55},  ISSN={0004-282X},  url={https://doi.org/10.1590/S0004-282X1997000200032},  DOI={10.1590/S0004-282X1997000200032},  number={2},  journal={Arquivos de Neuro-Psiquiatria},  publisher={Academia Brasileira de Neurologia - ABNEURO},  author={Jevoux, Carla da Cunha},  year={1997},  month={Jun},  pages={342–342} }