Decline in incidence of pneumonia.
Bang
A
A
Bang
R
R
D006801:Humans; D015994:Incidence; D007194:India / Q000453:epidemiology; D010033:Otitis Media / Q000453:epidemiology; D011014:Pneumonia / Q000453:epidemiology*; D012141:Respiratory Tract Infections / Q000453:epidemiology