The burden of long COVID: a multinational cohort analysis of Spanish and UK data including SARS-CoV-2 infections, reinfections, and matched contemporaneous test negative controls by Prieto Alhambra, D, Kostka, K, Roel, E, Trinh, N, Delmestri, A, Mateu, L, Paredes, R, Duarte Salles, T, Catala, M, Jodicke, A

The burden of post-acute COVID-19 symptoms in a multinational network cohort analysis by Kostka, K, Roel, E, Trinh, NTH, Mercadé-Besora, N, Delmestri, A, Mateu, L, Paredes, R, Duarte-Salles, T, Prieto Alhambra, D, Català, M, Jödicke, AM