Dog bites in children less than 4 years old.
D000293:Adolescent; D000367:Age Factors; D000818:Animals; D001733:Bites and Stings / Q000453:epidemiology*; D002641:Chicago; D002648:Child; D002675:Child, Preschool; D004285:Dogs; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D012621:Seasons