Trends over time in the size and quality of randomised controlled trials of interventions for chronic low-back pain
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| Description | scientific article |
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author: Raymond W Ostelo Nicholas Henschke Sidney M Rubinstein Bart W Koes Maurits W van Tulder Marienke van Middelkoop Arianne P Verhagen |
| Publication date | October 27, 2011 |
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