Placebo surgery in trials of therapy for Parkinson's disease

Comment

W J Weiner. N Engl J Med. 2000.

. 2000 Feb 3;342(5):353; author reply 354-5.

No abstract available

Comment on

Use of placebo surgery in controlled trials of a cellular-based therapy for Parkinson's disease.
Freeman TB, Vawter DE, Leaverton PE, Godbold JH, Hauser RA, Goetz CG, Olanow CW. Freeman TB, et al. N Engl J Med. 1999 Sep 23;341(13):988-92. doi: 10.1056/NEJM199909233411311. N Engl J Med. 1999. PMID: 10498497 No abstract available.
The ethical problems with sham surgery in clinical research.
Macklin R. Macklin R. N Engl J Med. 1999 Sep 23;341(13):992-6. doi: 10.1056/NEJM199909233411312. N Engl J Med. 1999. PMID: 10498498 No abstract available.