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    [1] The Nobel Prize in Physiology or Medicine 2018,Retrieved October 1, 2018, fromhttp://www.nobelprizemedicine.org/the-nobel-prize-in-physiology-or-medicine-2018/

    [2]Dana R. Leach (1996),Enhancement of Antitumor Immunity by CTLA-4 Blockade, Science, DOI: 10.1126/science.271.5256.1734

    [3] Unleashing the immune system to combat cancer. Retrieved September 30, 2018, from http://www.laskerfoundation.org/awards/show/unleashing-immune-system-combat-cancer/

    [4] Warren Alpert Foundation Honors Five Pioneers Cancer Immunology. RetrievedSeptember 30, 2018, from https://hms.harvard.edu/news/warren-alpert-foundation-honors-five-pioneers-cancer-immunology

    [5] Trailblazing Researchers in Immunotherapy Selected to Receive America's Most Distinguished Prize in Medicine. RetrievedSeptember 30, 2018, from http://www.amc.edu/news/trailblazing-researchers-in-immunotherapy-selected-to-receive-americas-most-distinguished-prize-in-medicine.cfm
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