Carvalho, J. J. de, Alves, J., Severino, F. ., Reis, V., & Deulefeu, F. (2022). "Not otherwise specified headache" in emergency department: an analysis of 149,603 visits to nine Upa’s 24h in Fortaleza. Headache Medicine, 13(Supplement), 46. https://doi.org/10.48208/HeadacheMed.2022.Supplement.46