Letters Duplicate systematic reviews

Repeated meta-analyses are both worthy and to be encouraged

BMJ 2013; 347 doi: https://doi.org/10.1136/bmj.f5508 (Published 10 September 2013) Cite this as: BMJ 2013;347:f5508
  1. Aidan Goggins, pharmacist and nutritionist1
  1. 1Dublin, Republic of Ireland
  1. aidan{at}aidangoggins.com

The weight and influence of a meta-analysis in determining and qualifying a healthcare practitioner’s deciding method of treatment is tremendous. With much equivocation over the validity of published research,1 the transparency of clinical guidelines,2 and the relevance of many risk factors to clinical outcomes3—all largely as a result of bias—it …

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