Wilke, Jan ;
Mohr, Lisa ;
Tenforde, Adam S...
Wilke , J , Mohr , L , Tenforde , A S , Edouard , P , Fossati , C , González-Gross , M , Ramírez , C S , Laiño , F , Tan , B , Pillay , J D , Pigozzi , F , Jimenez-Pavon , D , Novak , B , Jaunig , J , Zhang , M , van Poppel , M , Heidt , C , Willwacher , S , Yuki , G , Lieberman , D E , Vogt , L , Verhagen , E , Hespanhol , L & Hollander , K 2021 , ' A pandemic within the pandemic? Physical activity levels substantially decreased in countries affected by covid-19 ' , International Journal of Environmental Research and Public Health , vol. 18 , no. 5 , 2235 , pp. 1-12 . https://doi.org/10.3390/ijerph18052235.
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2021