Morphometry of the placental exchange area.
D000818:Animals; D002824:Chorionic Villi / Q000502:physiology / Q000648:ultrastructure; D005260:Female; D005865:Gestational Age; D006801:Humans; D008431:Maternal-Fetal Exchange; D010920:Placenta / Q000033:anatomy & histology* / Q000502:physiology; D011247:Pregnancy; D013045:Species Specificity; D013223:Statistics as Topic