@misc{10061,
  author = {J. Lewis and W. Bilker and R. Weinstein and B. Strom},
  title = {The relationship between time since registration and measured incidence rates in the General Practice Research Database},
  year = {2005},
  journal = {Pharmacoepidemiol Drug Saf},
  volume = {14},
  number = {7},
  pages = {443-51},
  issn = {1053-8569 (Print) 1053-8569},
  doi = {10.1002/pds.1115},
}