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Nader, HB; et al. (1999). „Heparan sulfates and heparins: similar compounds performing the same functions in vertebrates and invertebrates?”. Braz. J. Med. Biol. Res. 32 (5): 529—538. PMID10412563. doi:10.1590/S0100-879X1999000500005.
web.archive.org
Francis CW, Kaplan KL, et al. (2006). „Chapter 21. Principles of Antithrombotic Therapy”. Ур.: Lichtman MA, Beutler E, Kipps TJ. Williams Hematology (7th изд.). ISBN978-0071435918. Архивирано из оригинала 7. 7. 2011. г. Приступљено 8. 9. 2011.