The weight increase of the placenta and embryo in early human pregnancy. (The placento-fetal index).
D000029:Abortion, Legal; D005314:Embryonic and Fetal Development; D005260:Female; D005865:Gestational Age; D006801:Humans; D009929:Organ Size; D010920:Placenta; D011247:Pregnancy; D013223:Statistics as Topic