title: A note on the prevalence of umbilical hernia in South African preschool children.
mesh_terms: D000367:Age Factors; D044383:Black People; D002648:Child; D002675:Child, Preschool; D005260:Female; D006554:Hernia, Umbilical / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D012737:Sex Factors; D013019:South Africa; D044465:White People