The problem of the retained placenta and its management.
D000698:Analgesia; D005260:Female; D006801:Humans; D008614:Meperidine; D007744:Obstetric Labor Complications / Q000209:etiology / Q000601:surgery*; D010920:Placenta; D011247:Pregnancy; D011248:Pregnancy Complications
D008614:Meperidine