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Access full text of scholarly articles as you browse with tiny_isotope — PaywallUnblock Pro. As you browse the web, tiny isotope searches the entire web automatically for legal, free, full-text open PDF versions of the paper. tiny_isotope uses university websites, open access repositories, author websites, government servers, and many other places to find legal free versions of papers. If you love OA.mg, Unpaywall, Kopernio, and Science then tiny_isotope is for you.