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    2 research outputs found

    EPIDEMIOLOGICAL ANALYSIS OF VIRAL PNEUMONIAE IN 1986-1990

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    'Medical University Prof. Dr. Paraskev Stoyanov - Varna'
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    Varna Medical University Press: Journals

    ON SOME BIOLOGICAL PROPERTIES OF INFLUENZA VIRUSES TYPE A ISOLATED DURING THE PERIOD 1981-1983

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    'Medical University Prof. Dr. Paraskev Stoyanov - Varna'
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    Varna Medical University Press: Journals
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