British Paediatric Surveillance Unit: 12th annual report.
D002648:Child; D002675:Child, Preschool; D003140:Communicable Disease Control / Q000706:statistics & numerical data*; D003141:Communicable Diseases / Q000175:diagnosis / Q000453:epidemiology*; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D008297:Male; D011159:Population Surveillance; D006113:United Kingdom / Q000453:epidemiology