Further Reading

Van Epps, H. (2006) ‘Influenza: exposing the true killer’ [online], Journal of Experimental Medicine, vol. 3, no. 4, p. 803, http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2118275/ (accessed 24 November 2011), doi: 10.1084/jem.2034fta.