The presence of the sex binding globulin in amniotic fluid.
D000653:Amniotic Fluid / Q000032:analysis*; D004591:Electrophoresis, Polyacrylamide Gel; D004958:Estradiol; D005260:Female; D005333:Fetus / Q000502:physiology; D005916:Globulins / Q000032:analysis*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D011485:Protein Binding; D011506:Proteins / Q000032:analysis; D012737:Sex Factors; D013739:Testosterone; D014316:Tritium
D005916:Globulins; D011506:Proteins; D014316:Tritium; D013739:Testosterone; D004958:Estradiol