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Wong, Kerry L M; Gimma, Amy; Coletti, Pietro; CoMix, European Working Group; Faes, Christel; Beutels, Philippe; Hens, Niel; Jaeger, Veronika K; Karch, Andre; Johnson, Helen; Edmunds, WJohn; Jarvis, Christopher I (2023). Social contact patterns during the COVID-19 pandemic in 21 European countries - evidence from a two-year study. BMC infectious diseases, 23(1), p. 268. BioMed Central 10.1186/s12879-023-08214-y
