Astudillo Neira, P. and Aguinaga, F. 2021. Best posters of the XXI International Congress of Pediatrics of the Ecuadorian Pediatric Society. Quito, 12-14 August 2021: Conference communications. Revista Ecuatoriana de Pediatría. 22, 2 (Aug. 2021), Article 17:1-7. DOI:https://doi.org/10.52011/118.