[PRENATAL SEX RATIO IN MAN].
D005260:Female; D006801:Humans; D008297:Male; D010829:Physiological Phenomena; D011247:Pregnancy; D012728:Sex Chromatin; D012732:Sex Determination Analysis; D019849:Sex Determination Processes; D012744:Sex Ratio
PREGNANCY; SEX CHROMATIN; SEX DETERMINATION
PRENAT'ALN'I POM ER POHLAV'I U  CLOV EKA.