Acute respiratory infections in children in developing countries: an international point of view.
D000208:Acute Disease; D002648:Child; D002675:Child, Preschool; D003906:Developing Countries; D006266:Health Education; D006801:Humans; D007223:Infant; D012141:Respiratory Tract Infections / Q000401:mortality / Q000517:prevention & control* / Q000628:therapy; D014944:World Health Organization