Tonne C, Ranzani O, Alari A, Ballester J, Basagana X, Chaccour C, Dadvand P, Duarte T, Foraster M, Mila C, Nieuwenhuijsen MJ, Olmos S, Rico A, Sunyer J, Valentin A, Vivanco R. Air pollution in relation to COVID-19 morbidity and mortality: a large population-based cohort study in Catalonia, Spain (COVAIR-CAT). Res Rep Health Eff Inst. 2024 Sep;2024(220):1-48.