Encephalitis associated with Covid-19 and thunderclap headache: an unusual relationship. Headache Medicine, [S. l.], v. 12, n. 4, p. 338–342, 2022. DOI: 10.48208/HeadacheMed.2021.57. Disponível em: https://headachemedicine.com.br/hm/article/view/593. Acesso em: 22 jan. 2026.