Serrano Sanabria, Mario Esteban, et al. “Anthropometric Characteristics and Muscular Strength in Costa Rican Football Players Between 15 and 20 Years”. MHSalud: Revista En Ciencias Del Movimiento Humano Y Salud, vol. 14, no. 1, June 2017, https://doi.org/10.15359/mhs.14-1.2.