Study of sex chromatin in amniotic membranes of newborns.
D000653:Amniotic Fluid / Q000032:analysis*; D002462:Cell Membrane / Q000032:analysis; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D010920:Placenta / Q000032:analysis; D012728:Sex Chromatin / Q000032:analysis*