Domecq JP, Prutsky G, de los Ángeles Lazo M, Salazar C, Montori V, Prevost Y, et al. Identification of tachypnea and subcostal retraction as clinical signs for the diagnosis of community-acquired pneumonia among children: systematic review and meta-analysis. Rev Peru Med Exp Salud Publica [Internet]. 2014 Feb. 3 [cited 2024 Nov. 21];29(3). Available from: https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/366