Clinical and polysomnographic characteristics in patients with morning headache. Headache Medicine, [S. l.], v. 9, n. 2, p. 42–48, 2018. DOI: 10.48208/HeadacheMed.2018.10. Disponível em: https://headachemedicine.com.br/hm/article/view/211. Acesso em: 22 jan. 2026.