title: A comparative study of placental  villous changes in normal and abnormal pregnancies.
mesh_terms: D000740:Anemia / Q000473:pathology; D001787:Blood Group Incompatibility / Q000473:pathology; D005260:Female; D006801:Humans; D010920:Placenta / Q000473:pathology*; D011225:Pre-Eclampsia / Q000473:pathology; D011247:Pregnancy; D011248:Pregnancy Complications / Q000473:pathology*; D011273:Pregnancy, Prolonged