High prevalence of potential biases threatens the interpretation of trials in patients with chronic disease
<p>Abstract</p> <p>Background</p> <p>The complexity of chronic diseases is a challenge for investigators conducting randomized trials. The causes for this include the often difficult control for confounding, the selection of outcomes from many potentially important outc...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2011-06-01
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| Series: | BMC Medicine |
| Online Access: | http://www.biomedcentral.com/1741-7015/9/73 |