title: Variations in natal knowledge among high school students.
mesh_terms: D000293:Adolescent; D001741:Black or African American; D000013:Congenital Abnormalities; D005260:Female; D006266:Health Education; D006801:Humans; D008297:Male; D008800:Mexico / Q000208:ethnology; D012737:Sex Factors; D014481:United States