Carvalho, L.C.L.S., Silva, P.A. da and Filho, P.A.S.R. (2023) “Persistent headache and chronic daily headache after COVID-19: a prospective cohort study”, Headache Medicine, 14(Supplement), p. 12. Available at: https://headachemedicine.com.br/hm/article/view/830 (Accessed: 4 May 2026).