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Cited by 240

The DOI matches its Crossref record.

Use of Placebo Surgery in Controlled Trials of a Cellular-Based Therapy for Parkinson's Disease

Freeman, Thomas B., Vawter, Dorothy E., Leaverton, Paul E., Godbold, James H., Hauser, Robert A., Goetz, Christopher G., Olanow, C. Warren·1999·New England Journal of Medicine

Abstract

Surgical procedures are frequently introduced into general practice on the basis of uncontrolled studies that are less rigorous than those required for the approval of medical interventions.1 The standard for the evaluation of surgical therapy is lower because of the complexity of designing and conducting scientifically valid and ethically acceptable clinical trials of surgical procedures.2 As a result, many surgical trials fail to control for investigator bias or placebo effects.3,4 The list of inadequately studied invasive or surgical procedures that became part of standard medical practice only to be abandoned after closer scrutiny includes bloodletting, routine tonsillectomy, routine circumcision, . . .

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Metadata

Authors
Freeman, T. B., Vawter, D. E., Leaverton, P. E., Godbold, J. H., Hauser, R. A., Goetz, C. G., & Olanow, C. W.
Venue
New England Journal of Medicine
Published
1999-09-23
Volume
341
Issue
13
Pages
988-992
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2014571087
Cited by
240
References
0
FWCI
16.72
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Use of Placebo Surgery in Controlled Trials of a Cellular-Based Therapy for Parkinson's Disease. https://app.cochat.ai/papers/10.1056/nejm199909233411311
The paper
Freeman, T. B., Vawter, D. E., Leaverton, P. E., Godbold, J. H., Hauser, R. A., Goetz, C. G., & Olanow, C. W. (1999). Use of Placebo Surgery in Controlled Trials of a Cellular-Based Therapy for Parkinson's Disease. New England Journal of Medicine. https://doi.org/10.1056/nejm199909233411311

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.