Artículo original: Neal JT, Monuteaux MC, Rangel SJ, Bachur RG, Barnewolt CE. Does age affect the test performance of secondary sonographic findings for pediatric appendicitis. Pediatr Radiol. 2021;51(11):2018-26. DOI: https://doi.org/10.1007/s00247-021-05100-0 Sociedad: Journal of the European Society of Pediatric Radiology, the…