Number and size of randomized trials reported in general health care journals from 1948 to 1997.
BACKGROUND: Randomized trials are important for controlling selection biases, and where sufficient numbers of participants are involved, have the potential to yield reliable estimates of treatment effects. METHODS: We investigated trends in the number and size of randomized trials reported in gener...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2002
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