Epidemiology. 22(1):S183-S184, January 2011 (2011) Hospitalizations Within Low Socioeconomic Status Group and Air Pollution. A Case of a U-shaped Curve in Public Health? Revista : Epidemiology. Volumen : 22 Número : 1 Páginas : S183-S184 Tipo de publicación : Conferencia No A* ni A Abstract