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http://www.researchgate.net/profile/Marietjie_Venter/publication/38061690_Interim_report_on_pandemic_H1N1_influenza_virus_infections_in_South_Africa_April_to_October_2009_epidemiology_and_factors_associated_with_fatal_cases/links/0fcfd5094ab2857387000000
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http://repository.up.ac.za/bitstream/2263/13258/1/Archer_Interim(2009).pdf
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http://137.215.9.22/bitstream/handle/2263/13258/Archer_Interim(2009).pdf?sequence=1&isAllowed=y
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http://www.repository.up.ac.za/bitstream/handle/2263/13258/Archer_Interim(2009).pdf?sequence=1&isAllowed=y
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http://www.eurosurveillance.org/images/dynamic/ee/v14n42/art19369.pdf
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