1. European standard EN 14683, standardizing the information and performance data required for the masks intended to help facilitate the choice of surgical face masks in the European market.
2. European medical device directive 93/43/CEE of 14 June 1993, establishing a framework for Community action in the field of medical device, Official Journal L 169 of 12 July 1993, p. 1–43.
3. Do N95 respirators provide 95% protection level against airborne viruses, and how adequate are surgical masks?;Balazy;Am. J. Infect. Control,2006
4. World Heath Organization report, weekly epidemiological record: H5N1 avian influenza: first steps towards development of an human vaccine. Weekly epidemiological record, 33, 19 august 2005.
5. World Heath Organization report, February 2006, Epidemeic and pandemic alert. Avian influenza: significance of mutations in the H5N1 virus. http://www.who.int/csr/2006_02_20/en/index.html.