Letter: The use of blood patch for post-spinal headaches.
D000767:Anesthesia, Epidural / Q000009:adverse effects*; D000773:Anesthesia, Obstetrical; D001804:Blood Transfusion, Autologous; D004388:Dura Mater / Q000293:injuries; D005260:Female; D006261:Headache / Q000628:therapy*; D006801:Humans; D008875:Middle Aged; D011247:Pregnancy