@misc{10006,
  author = {J. Hardy and B. Leaderer and T. Holford and G. Hall and M. Bracken},
  title = {Safety of medications prescribed before and during early pregnancy in a cohort of 81,975 mothers from the UK General Practice Research Database},
  year = {2006},
  journal = {Pharmacoepidemiol Drug Saf},
  volume = {15},
  number = {8},
  pages = {555-64},
  issn = {1053-8569 (Print) 1053-8569},
  doi = {10.1002/pds.1269},
}