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Juutinen A, Sarvikivi E, Laukkanen-Nevala P, Helve O, et al. Closing lower secondary schools had no impact on COVID-19 incidence in
13-15-year-olds in Finland. Epidemiol Infect 2021;149:e233.
PMID: 34698006
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Juutinen A, Sarvikivi E, Laukkanen-Nevala P, Helve O, et al. Closing lower secondary schools had no impact on COVID-19 incidence in
13-15-year-olds in Finland. Epidemiol Infect 2021;149:e233.
PMID: 34698006
|
|
|
|