A. Bustamante V, A. F. Seabra, R. M. Garganta, and J. A. Maia, “Effects of the physical activity and socioeconomic status in overweight and obesity in school students, East Lima 2005”, Rev Peru Med Exp Salud Publica, vol. 24, no. 2, Jun. 2007, doi: 10.17843/rpmesp.2007.242.1095.