Development and ultrastructural adaptations of the human placenta.
D005260:Female; D006801:Humans; D007801:Langerhans Cells / Q000502:physiology / Q000648:ultrastructure; D010920:Placenta / Q000033:anatomy & histology / Q000502:physiology* / Q000648:ultrastructure; D011247:Pregnancy / Q000502:physiology*