publicaciones seleccionadas artículo editorial Correction to: Study protocol and rationale of the “Cogniaction project” a cross-sectional and randomized controlled trial about physical activity, brain health, cognition, and educational achievement in schoolchildren (BMC Pediatrics, (2019), 19, 1, (260), 10.1186/s12887-019-1639-8). BMC Pediatrics. 2021