Sibling Resemblance in Physical Activity Levels: The Peruvian Sibling Study on Growth and Health - Santos, Carla; Maia, José; Pereira, Sara; Vasconcelos, Olga; Garganta, Rui; Lightfoot, J. Timothy; Tani, Go; Hedeker, Donald; Katzmarzyk, Peter T; Bustamante, Alcibíades (International Journal of Environmental Research and Public Health, 2023)