@misc{9532,
  author = {C. Sammon and A. McGrogan and J. Snowball and C. de Vries},
  title = {Factors associated with uptake of seasonal and pandemic influenza vaccine among clinical risk groups in the UK: an analysis using the General Practice Research Database},
  year = {2012},
  journal = {Vaccine},
  volume = {30},
  number = {14},
  pages = {2483-9},
  issn = {0264-410x},
  doi = {10.1016/j.vaccine.2011.11.077},
}