Treatment of Medically Intractable Cluster Headache by Occipital Nerve Stimulation: Long-Term Follow-Up of Eight Patients
Lancet 369:1099-1065, Burns,B.,et al, 2007
Syndrome of Cerebral Spinal Fluid Hypovolemia
Neurol 55:1321-1327, Chung,S.J.,et al, 2000