Published in Vaccine Weekly, August 4th, 2004
According to a study from England, "Adaptations to the recognized methods of systematic reviewing are required when addressing questions about safety, particularly about rare and/or long-term serious adverse events. Conducting a systematic review of vaccine safety requires the implementation of novel strategies for locating studies, the use of experimental instruments to assess the quality of non-randomized studies, and the employment of pooling methods for non-randomized data, where appropriate."
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Source: Vaccine Weekly (2004-08-04)
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