@misc{9777,
  author = {Y. Punekar and A. Sheikh},
  title = {Establishing the sequential progression of multiple allergic diagnoses in a UK birth cohort using the General Practice Research Database},
  year = {2009},
  journal = {Clin Exp Allergy},
  volume = {39},
  number = {12},
  pages = {1889-95},
  issn = {0954-7894},
  doi = {10.1111/j.1365-2222.2009.03366.x},
}