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1. www.ncbi.nlm.nih.gov › pmcHome - PMC - NCBI - National Center for Biotechnology Information

   www.ncbi.nlm.nih.gov › pmc

   PubMed Central ® (PMC) is a free full-text archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health's National Library of Medicine (NIH/NLM) About PMC

   • User Guide

     PubMed Central® (PMC) is a free full-text archive of...

   • About PMC

     About PMC. PubMed Central ® (PMC) is a free full-text...

   • Collections

     PMC Collections. PubMed Central ® (PMC) archives millions of...

   • For Publishers

     PubMed Central® (PMC) is a free full-text archive of...

   • For Developers

     Not all articles in PMC are available for text mining and...

   • Clipboard

     The .gov means it's official. Federal government websites...

   • Public Access

     PubMed Central (PMC) was established in 2000 as the National...

   • New Isatin–Indole Conjugates

     Indole (1H-benzo[b]pyrrole, II, Figure 1) has a bicyclic...

   • Upsides

     DOI: 10.1192/S2056474000000064 [PMC free article] [Google...

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   • Free Full Text Articles

     HOW TO APPROACH. In addition to journals which are fully...

2. doaj.orgDirectory of Open Access Journals – DOAJ

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   About the directory. DOAJ is a unique and extensive index of diverse open access journals from around the world, driven by a growing community, and is committed to ensuring quality content is freely available online for everyone. DOAJ is committed to keeping its services free of charge, including being indexed, and its data freely available.

3. People also ask

   Where can I find open access journals & articles?

   • Find open access journals & articles. DOAJ is a unique and extensive index of diverse open access journals from around the world, driven by a growing community, and is committed to ensuring quality content is freely available online for everyone.

   Directory of Open Access Journals – DOAJ

   doaj.org/

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   How do I get free full-text articles?

   • Free full-text articles can be approached in the following ways. Medknow Publications publish nearly 150 journals. They provide free access to the electronic editions of their journals. [ 6] Researchers just have to open the site www.medknow.com, fill the key word they require, and search.

   “Free Full Text Articles”: Where to Search for Them? - PMC

   www.ncbi.nlm.nih.gov/pmc/articles/PMC3250025/

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   How many free scholarly articles are there?

   • An open database of 50,085,221 free scholarly articles. We harvest Open Access content from over 50,000 publishers and repositories, and make it easy to find, track, and use. —Nature feature article, August 2018 We're integrated into thousands of library systems, search platforms, and other information products worldwide.

   Unpaywall

   unpaywall.org/

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   What is early journal content?

   • Early Journal Content, articles published prior to the last 95 years in the United States, or prior to the last 143 years if initially published internationally, are freely available to all Even more content is available when you register to read – millions of articles from nearly 2,000 journals

   Open and free content on JSTOR and Artstor - About JSTOR

   about.jstor.org/oa-and-free/

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4. unpaywall.orgUnpaywall

   unpaywall.org

   An open database of 50,185,467 free scholarly articles. We harvest Open Access content from over 50,000 publishers and repositories, and make it easy to find, track, and use. Get the extension

5. about.jstor.org › oa-and-freeOpen and free content on JSTOR and Artstor - About JSTOR

   about.jstor.org › oa-and-free

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   Explore our growing collection of Open Access journals. Early Journal Content, articles published prior to the last 95 years in the United States, or prior to the last 143 years if initially published internationally, are freely available to all. Even more content is available when you register to read – millions of articles from nearly 2,000 ...

6. www.ncbi.nlm.nih.gov › pmcHome - PMC - NCBI - National Center for Biotechnology Information

   www.ncbi.nlm.nih.gov › pmc

   PMC. PubMed Central® (PMC) is a free full-text archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health's National Library of Medicine (NIH/NLM).

7. www.jstor.orgJSTOR Home

   www.jstor.org

   Harness the power of visual materials—explore more than 3 million images now on JSTOR. Enhance your scholarly research with underground newspapers, magazines, and journals. Explore collections in the arts, sciences, and literature from the world’s leading museums, archives, and scholars. JSTOR is a digital library of academic journals ...