title: [ACUTE RESPIRATORY TRACT INFECTIONS (1959-1961)].
mesh_terms: D000208:Acute Disease; D004813:Epidemiology; D006801:Humans; D008800:Mexico; D012141:Respiratory Tract Infections
keywords: EPIDEMIOLOGY; MEXICO; RESPIRATORY TRACT INFECTIONS
vernacular_title: INFECCIONES AGUDAS DEL APARATO RESPIRATORIO (1959-1961)