[Fetal sex determination in the 1st pregnancy trimester].
D002823:Chorion / Q000032:analysis; D005260:Female; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D012728:Sex Chromatin / Q000032:analysis; D012732:Sex Determination Analysis
Opredelenie pola ploda v I trimestre beremennosti.