1[1]King WA, Martin NA. Intracerebral hemorrhage due to dural arteriovenous malformations and fistulae. Neurosurgery Clinics of North America, 1992,3: 577.
2[2]Borden JA, A proposed classification for spinal and cranial dural arterio venous fistulous malformations and implicafions for treat ment. J Nerosurg, 1995,82: 166.