THE PROBLEM OF FETAL MEMBRANES IN TWIN PREGNANCIES.
D005321:Extraembryonic Membranes; D005260:Female; D006801:Humans; D010920:Placenta; D011247:Pregnancy; D011272:Pregnancy, Multiple; D059285:Pregnancy, Twin; D013223:Statistics as Topic; D014427:Twins
FETAL MEMBRANES; PLACENTA; PREGNANCY; PREGNANCY, MULTIPLE; STATISTICS; TWINS