Egas Romo SR, Frómeta ER. Sports selection norm for Ecuadorian judo initiation in ages between 8-11 years. EFDeportes [Internet]. 2018Jun.17 [cited 2026Nov.10];23(242):81-4. Available from: https://efdeportes.com/efdeportes/index.php/EFDeportes/article/view/558