Physical activity and screen time of children and adolescents before and during the COVID-19 lockdown in Germany: a natural experiment

Schmidt, Steffen C E ; Anedda, Bastian ; Burchartz, Alexander ; Eichsteller, Ana ; Kolb, Simon ; Nigg, Carina ; Niessner, Claudia ; Oriwol, Doris ; Worth, Annette ; Woll, Alexander

Scientific reports, 2020-12, Vol.10 (1), p.21780-21780, Article 21780 [Periódico revisado por pares]

England: Nature Publishing Group

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