Sex chromatin survey in 3,000 newborn infants in Mexico.
D000013:Congenital Abnormalities / Q000235:genetics; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D008800:Mexico; D010641:Phenotype; D011247:Pregnancy; D012728:Sex Chromatin; D013223:Statistics as Topic