Epidemiology of chest diseases.
D004165:Diphtheria / Q000453:epidemiology; D006801:Humans; D007194:India; D007251:Influenza, Human / Q000453:epidemiology; D011014:Pneumonia / Q000453:epidemiology; D012141:Respiratory Tract Infections / Q000453:epidemiology*; D014397:Tuberculosis, Pulmonary / Q000453:epidemiology; D014917:Whooping Cough / Q000453:epidemiology