PAIN
Volume 145, Issue 3 , Pages 265-266, October 2009

Underpowered clinical trials: Time for a change

Maastricht University Medical Centre, Department of Anesthesiology and Pain Management, Mail Box 5800, 6202 AZ Maastricht, The Netherlands

Maastricht University Medical Centre, Department of Clinical Epidemiology and Medical, Technology Assessment, The Netherlands

Received 7 July 2009; accepted 24 July 2009. published online 17 August 2009.

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PII: S0304-3959(09)00418-7

doi:10.1016/j.pain.2009.07.033

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PAIN
Volume 145, Issue 3 , Pages 265-266, October 2009