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Rheumatology Advance Access originally published online on August 13, 2007
Rheumatology 2007 46(9):1388; doi:10.1093/rheumatology/kem161
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© The Author 2007. Published by Oxford University Press on behalf of the British Society for Rheumatology. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

EDITORIALS

Problems with causality

E. Ernst

Complementary Medicine, Peninsula Medical School, Universities of Exeter & Plymouth, 25 Victoria Park Road, Exeter EX2 4NT UK

Correspondence to: Edzard.Ernst@pms.ac.uk

The first 10% of the full text of this article appears below.

In this issue, Williamson et al. [1] present an interesting pragmatic trial of acupuncture vs supervised physiotherapy vs written instructions for home exercise (the control group) in patients with knee osteoarthritis booked for joint replacements. The results suggest a marginal benefit for acupuncture compared with the other treatments. We tend to attribute such differences to the respective intervention. On closer inspection, however, some doubts . . . [Full Text of this Article]


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