Clinical and statistical issues in thera
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E. Garbe; J. RΓΆhmel; U. Gundert-Remy
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Article
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1993
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Springer
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English
β 762 KB
Absolute proof of efficacy can only be given by placebo controlled trials. It is, however, important to classify a drug within the spectrum of existing therapeutic alternatives and, where effective treatment is available, it may be imperative due to ethical considerations to demonstrate that one dru