Air pollution, PM2.5composition, source factors, and respiratory symptoms in asthmatic and nonasthmatic children in Santiago, Chile 

Risk factor of intestinal colonization with vancomycin resistant Enterococcus spp in hospitalized pediatric patients with oncological disease Factores de riesgo de colonización por Enterococcus spp resistente a vancomicina en pacientes pediátricos hospita 

Óxido nítrico exhalado, asma y atopia: análisis en un panel de niños en Santiago, Chile