N Engl J Med. 2001 Feb 22;344(8):556-63.

A randomized trial of surgery in the treatment of single metastases to the brain.

Patchell RA, Tibbs PA, Walsh JW, Dempsey RJ, Maruyama Y, Kryscio RJ, Markesbery WR, Macdonald JS, Young B.

N Engl J Med. 1990 Feb 22;322(8):494-500.

Beneficial effect of carotid endarterectomy in symptomatic patients with high-grade carotid stenosis. North American Symptomatic Carotid Endarterectomy Trial Collaborators.

N Engl J Med. 1991 Aug 15;325(7):445-53.

No authors listed.

Neurosurgery. 1998 Sep;43(3):514-26; discussion 527-8.

Combined (thalamotomy and stimulation) stereotactic surgery of the VIM thalamic nucleus for bilateral Parkinson disease.

Benabid AL, Pollak P, Louveau A, Henry S, de Rougemont J.

Appl Neurophysiol. 1987;50(1-6):344-6.

Failure of extracranial-intracranial arterial bypass to reduce the risk of ischemic stroke. Results of an international randomized trial. The EC/IC Bypass Study Group.

No authors listed

N Engl J Med. 1985 Nov 7;313(19):1191-200.

Randomized comparisons of radiotherapy and nitrosoureas for the treatment of malignant glioma after surgery.

Walker MD, Green SB, Byar DP, Alexander E Jr, Batzdorf U, Brooks WH, Hunt WE, MacCarty CS, Mahaley MS Jr, Mealey J Jr, Owens G, Ransohoff J 2nd, Robertson JT, Shapiro WR, Smith KR Jr, Wilson CB, Strike TA.

N Engl J Med. 1980 Dec 4;303(23):1323-9.

J Neurosurg. 1999 Feb;90(2):187-96.

Deep-brain stimulation of the subthalamic nucleus or the pars interna of the globus pallidus in Parkinson's disease.Deep-Brain Stimulation for Parkinson's Disease Study Group.

N Engl J Med. 2001 Sep 27;345(13):956-63.

Deep-brain Stimulation for Parkinson's Disease Study Group