Peer pressure
One of the hardest things to get to grips with is how reliable are the new scientific studies about MMR that constantly appear in the newspapers? Significant column inches don't always mean significant science.
Scientists judge each other's work through a process called 'peer review'. They analyse scientific papers to decide whether the quality of the research supports the conclusions they draw. So if the work you hear about hasn't been published in a scientific journal, chances are it hasn't been properly scrutinised, and a healthy dose of scepticism may be in order.
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