@misc{10089,
  author = {P. Mangtani and P. Cumberland and C. Hodgson and J. Roberts and F. Cutts and A. Hall},
  title = {A cohort study of the effectiveness of influenza vaccine in older people, performed using the United Kingdom general practice research database},
  year = {2004},
  journal = {J Infect Dis},
  volume = {190},
  number = {1},
  pages = {1-10},
  issn = {0022-1899 (Print) 0022-1899},
  doi = {10.1086/421274},
}