@article{articlee8bf4a91, title = {Physical fitness spurts in childhood: A study in boys}, author = {Pereira, Sara and Garbeloto, Fernando and Guimarães, Eduardo and Santos, Carla and Baxter-Jones, Adam and Tani, Go and Freitas, Duarte and Bustamante, Alcibíades and Katzmarzyk, Peter T and Maia, José}, year = {2021}, doi = {10.1111/sms.13800}, journal = {Scandinavian Journal of Medicine and Science in Sports} }