Extract ng dokumento mula sa Public Health England at Department of Health na pinamagatang NERVTAG Sub-committee on the pandemic influenza Facemasks and Respirators stockpile: Formal Recommendations to the Department of Health, dated September 2016.
Extract ng dokumento mula sa Public Health England at Department of Health na pinamagatang NERVTAG Sub-committee on the pandemic influenza Facemasks and Respirators stockpile: Formal Recommendations to the Department of Health, dated September 2016.