Placental insufficiency--a questionable concept.
D001724:Birth Weight; D005260:Female; D005333:Fetus / Q000502:physiology; D005865:Gestational Age; D006128:Growth; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008431:Maternal-Fetal Exchange; D009748:Nutrition Disorders; D010920:Placenta / Q000166:cytology / Q000503:physiopathology; D010922:Placenta Diseases; D011247:Pregnancy; D012959:Socioeconomic Factors; D014599:Uterus / Q000098:blood supply