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PubMed Health
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All about reviews of clinical effectiveness research
All about reviews of clinical effectiveness research

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What could possibly be misleading about a 5-year survival rate? Check out our explanation of lead-time bias with links to articles on this topic: https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0029670/ 

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What exactly is a case-control study? Check out our short description at https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0025837/. To learn more about understanding research results, visit https://www.ncbi.nlm.nih.gov/pubmedhealth/understanding-research-results/. 
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What exactly is a cross-sectional study? Check out our explanation, links to examples, and more at: https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0025838/

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What’s qualitative research? Check out our definition and links to studies on using these methods in clinical research: https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0029369/ 

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What’s the difference between incidence (new cases) and prevalence (existing ones)? Plus more info about prevalence: https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0029371/

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Unsystematic reviews can mislead: without strict pre-set rules, authors could focus on studies they agree with and not include others. More information at: https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0025759/

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Cohort studies: cohorts, birth cohorts – what exactly does it all mean? Check out our short descriptions: https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0025833/

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Randomization in clinical trials: what is it exactly, how can you look for it, and why does randomization matter? Our quick overview sheds light: https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0025810/

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Learn how to spot a common trap in information about early detection and screening. It’s called lead-time bias: https://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0050893/

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Are you interested in systematic review research methods? Our blog introduces a new PubMed filter and more PubMed Health resources for researchers: http://www.ncbi.nlm.nih.gov/pubmedhealth/blog/2015/12/PubMed-filter-for-systematic-review-methods/
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