WANG M- yi, YE X- tao, XIN X- wen. Predictive value of Gram staining of low respiratory tract secretions paired to routine culture. Rev Med Chile [Internet]. 10 de enero de 2012 [citado 8 de mayo de 2026];140(2). Disponible en: https://www.revistamedicadechile.cl/index.php/rmedica/article/view/1534