Sentences with phrase «only chorionic»
Only chorionic villus sampling and amniocentesis can definitely detect or rule out fetal genetic abnormalities, but these are invasive to the pregnancy and carry a risk of miscarriage.
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The hCG (human chorionic gonadotropin) hormone is a remarkable molecule, which is very unusual because it is produced only by the cells that will become the placenta of the developing embryo (trophoblast cells).