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How much health evidence is there in the world?

2 Apr, 15 | by BMJ Clinical Evidence

by Gabriel Rada

Picture Gabriel Rada
Thirty five years ago, Archie Cochrane reproached the medical profession for not having managed to organise a “critical summary, by specialty or subspecialty, adapted periodically, of all relevant randomised controlled trials”.
Systematic reviews were invented to deal with this problem, thus enabling what we call evidence based medicine, and their number has being steadily growing. more…

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