@article{souza_grassi_antunes_ribeiro_oliveira_brandão_carvalho_friedrich_2026,  title={Regional variation and factors associated with average expenditure per headache disorder hospitalization in Brazil: a macrocosting analysis in the SUS (2008–2023)},  volume={60},  ISSN={0034-8910},  url={https://doi.org/10.11606/s1518-8787.2026060007119},  DOI={10.11606/s1518-8787.2026060007119},  journal={Revista de Saúde Pública},  publisher={Faculdade de Saúde Pública da Universidade de São Paulo},  author={Souza, Jesuély Spieckert de and Grassi, Vanise and Antunes, Marcos Otávio Brum and Ribeiro, Mariana Cristina and Oliveira, Vinicius da Silva Lessa de and Brandão, Adriel and Carvalho, João José Freitas de and Friedrich, Frederico},  year={2026},  pages={e20} }