@article{Ramírez Varela2021,
author = {Ramírez Varela, A. and Cruz, G.I.N. and Hallal, P. and Blumenberg, C. and Silva, S. and Salvo, D. and Martins, R. and Silva, B.G. and Resendiz, E. and Portillo, M.C. and Zaranza Monteiro, L. and Khoo, S. and Chong, K.H. and Silva, M. and Mannocci, A. and Ding, D. and Pratt, M.},
title= {Global, regional, and national trends and patterns in physical activity research since 1950: A systematic review},
year = {2021},
doi = {10.1186/s12966-020-01071-x},
volume = {18},
number = {5},
}