[Sero-epidemiological studies on Mycoplasma pneumoniae infections in pneumonia in children].
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D002681:China; D005260:Female; D005455:Fluorescent Antibody Technique; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D008297:Male; D011019:Pneumonia, Mycoplasma / Q000453:epidemiology*