cochrane collaboration peter ploug hansen f schünemann klaus whitlock evelyn sawicki holger david helle moher ian little alison sean tunis lorne becker graham burton martin firkins lester jean slutsky mercer shawna bero chalmers richter bernd gerd gartlehner gerald josé linde antes kleijnen forster johannes booker dave koster jüni straus sharon mccrory morton sally wilensky gail leisinger horton richard tore pang dans tikki mustonen pekka haynes leonila brian jan vandenbroucke impact factor cochrane library systematic reviews knowledge transfer translation evidence-based medicine strategic plan ebhc evidence-based health ebm lisa herxheimer andrew doug abadie kelson marcia bridgesj john olauson anders wale janet godal senn stephen eric garattini silvio paul garner marguerite hill sophie
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