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Primary Sources of Evidence (Articles) - Free Access


  • Pubmed

    • ​Full-text content can be limited.

    • According to their website, "Pubmed comprises more than 22 million citations from biomedical literature from MEDLINE, life science journals, and online books.  Citations may include links to full-text content from PubMed Central and publisher websites."

  • PubMed Central (PMC)

    • Full-text biomedical journal content made available by the US National Institutes of Health's National Library of Medicine.

    • Their list of journals and coverage provides helpful details.

    • According to their website, "Pubmed Central is a digital archive of life sciences journal literature that includes more than two million articles.  PMC also includes final, peer-reviewed author manuscripts by scientists and others who receive research funding from NIH and other funding agencies."

  • Directory of Open Access Journals (DOAJ)

    • According to their website, "The aim of the Directory of Open Access Journals is to increase the visibility and ease of use of open access scientific and scholarly journals thereby promoting their increased usage and impact.  The Directory aims to be comprehensive and cover all open access scientific and scholarly journals that use a quality control system to guarantee the content."

  • Google Scholar

    • Full-text content can be limited.

  • Back to Sources of Evidence

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