human, separate, normal, monochorionic, dichorionic, axile, parietal, small, large, fused, twin, hemochorial, infected, immature, fresh, most, early, mature, circumvallate, abnormal, term, mammalian, artificial, trimester, diabetic, lying, epitheliochorial, consecutive, anterior, chorioallantoic, diamniotic, hydropic, larger, monochorial, extrachorial, singleton, posterior, primate, smaller, multiple, postmature, fetal, fixed, eclamptic, endotheliochorial, distinct, axial, labyrinthine, preeclamptic, toxemic, haemochorial, adherent, thick, intact, maternal, double, marginal, fleshy, stained, premature, discoid, monozygotic, parturient, unlabeled, fundal, villous, syphilitic, rodent, accessory, perfused, affected, gestation, rhesus, intrusive, cloned