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Modified link of Web site: National Center for Biotechnology Information - PubMed Central - Jonas Salk (19141995): A vaccine against polio. |
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Dec 07, 2024 |
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Anniversary information added. |
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Oct 24, 2024 |
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Add new Web site: University of Mary Washington - Great Lives Lecture Series - Jonas Salk. |
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Sep 18, 2024 |
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Anniversary information added. |
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Jun 19, 2024 |
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Add new Web site: The MY HERO Project - Jonas Salk. |
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May 13, 2024 |
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First paragraph modernization. |
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Apr 05, 2024 |
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Add new Web site: California Museum - Jonas Salk. |
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Feb 21, 2024 |
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Add new Web site: Science History Institute Museum and Library - Jonas Salk and Albert Bruce Sabin. |
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Oct 20, 2023 |
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Media added. |
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May 15, 2023 |
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Add new Web site: History of Vaccines - Jonas Salk, MD. |
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Feb 15, 2023 |
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Add new Web site: National Center for Biotechnology Information - PubMed Central - Jonas Salk (19141995): A vaccine against polio. |
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Dec 23, 2022 |
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Add new Web site: Watson Institute - Biography of Jonas Salk. |
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May 09, 2022 |
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Add new Web site: Salk Institute for Biological Studies - Biography of Jonas Salk. |
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Mar 27, 2021 |
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Cross-references added. |
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Mar 04, 2020 |
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Add new Web site: Science Museum - Brought To Life - Biography of Jonas Salk. |
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Mar 11, 2019 |
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Add new Web site: Famous Scientists - Biography of Jonas Salk. |
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Mar 11, 2019 |
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Add new Web site: Lemelson-MIT Program - Biography of Jonas Salk. |
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Mar 11, 2019 |
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Article title changed to "Jonas Salk"; "in full Jonas Edward Salk" added. |
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Feb 04, 2015 |
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Add new Web site: Pennsylvania Center for the Book - Jonas Salk. |
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Jun 09, 2014 |
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Add new Web site: Jewish Virtual Library - Biography of Jonas E. Salk. |
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Apr 18, 2013 |
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Add new Web site: Chemical Heritage Foundation - Biography of Jonas Salk and Albert Bruce Sabin. |
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Apr 18, 2013 |
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Added information on the societal effects of Salk's vaccine and later developments in treatment of the disease. |
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Jun 25, 2009 |
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Media added. |
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Sep 22, 2008 |
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Article revised and updated. |
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Apr 25, 2007 |
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Added new Web site: Academy of Achievement - Biography of Jonas Salk. |
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Jul 07, 2006 |
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Added new Web site: TIME 100: Jonas Salk. |
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May 10, 2006 |
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Article revised. |
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Mar 25, 2004 |
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Article revised. |
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Apr 07, 1999 |
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Article added to new online database. |
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Jul 20, 1998 |
