Armstrong, B. G., Mangtani, P., Fletcher, A., Kovats, S., McMichael, A., Pattenden, S., & Wilkinson, P. (2004). Effect of influenza vaccination on excess deaths occurring during periods of high circulation of influenza: Cohort study in elderly people. BMJ Publishing Group Ltd.
Chicago Stili AlıntıArmstrong, Ben G., Punam Mangtani, Astrid Fletcher, Sari Kovats, Anthony McMichael, Sam Pattenden, ve Paul Wilkinson. Effect of Influenza Vaccination On Excess Deaths Occurring During Periods of High Circulation of Influenza: Cohort Study in Elderly People. BMJ Publishing Group Ltd, 2004.
MLA AlıntıArmstrong, Ben G., et al. Effect of Influenza Vaccination On Excess Deaths Occurring During Periods of High Circulation of Influenza: Cohort Study in Elderly People. BMJ Publishing Group Ltd, 2004.