1. Viral shedding and clinical illness in naturally acquired influenza virus infections;Lau;J Infect Dis,2010
2. World Health Organization. Factsheet No. 211: Influenza (Seasonal). WHO website. 2009. http://www.who.int/mediacentre/factsheets/fs211/en/index.html (accessed 19 Sep 2013).
3. Cardiovascular manifestations associated with influenza virus infection;Mamas;Int J Cardiol,2008
4. Physical, psychological and chemical triggers of acute cardiovascular events: preventive strategies;Mittleman;Circulation,2011
5. World Health Organization. Projections of mortality and causes of death, 2015 and 2030. WHO website. 2013. http://www.who.int/healthinfo/global_burden_disease/projections/en/ (accessed 19 Sep 2013).