The placenta--an overlooked organ.
D005260:Female; D005315:Fetal Diseases / Q000209:etiology; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000209:etiology*; D010920:Placenta / Q000033:anatomy & histology / Q000473:pathology; D010922:Placenta Diseases / Q000150:complications / Q000175:diagnosis; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D011272:Pregnancy, Multiple; D014427:Twins