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Surgical masks as good as respirators for flu and respiratory virus protection: Newsroom - UT Southwestern, Dallas, TX
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A Model Wearing A Mask To Prevent 'Swine Flu' Infection. Isolated Stock Photo, Picture And Royalty Free Image. Image 5939471.
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CDC H1N1 Flu | Interim Recommendations for Facemask and Respirator Use to Reduce Novel Influenza A (H1N1) Virus Transmission
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Use hanky, not mask, says public health department advisory on swine flu | Nagpur News - Times of India
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