Global effect of COVID-19 pandemic on physical activity, sedentary behaviour and sleep among 3- to 5-year-old children: a longitudinal study of 14 countries oleh Anthony D. Okely, Katharina E. Kariippanon, Hongyan Guan, Ellie K. Taylor, Thomas Suesse, Penny L. Cross, Kar Hau Chong, Adang Suherman, Ali Turab, Amanda E. Staiano, Amy S. Ha, Asmaa El Hamdouchi, Aqsa Baig, Bee Koon Poh, Borja Del Pozo-Cruz, Cecilia H. S. Chan, Christine Delisle Nyström, Denise Koh, E. Kipling Webster, Himangi Lubree, Hong Kim Tang, Issad Baddou, Jesus Del Pozo-Cruz, Jyh Eiin Wong, Kuston Sultoni, Maria Nacher, Marie Löf, Mingming Cui, Mohammad Sorowar Hossain, P. W. Prasad Chathurangana, Uddhavi Kand, V. P. Pujitha Wickramasinghe, Rebecca Calleia, Shameema Ferdous, Thanh Van Kim, Xiaojuan Wang, Catherine E. Draper