@misc{9614,
  author = {R. Charlton and J. Weil and M. Cunnington and S. Ray and C. de Vries},
  title = {Comparing the General Practice Research Database and the UK Epilepsy and Pregnancy Register as tools for postmarketing teratogen surveillance: anticonvulsants and the risk of major congenital malformations},
  year = {2011},
  journal = {Drug Saf},
  volume = {34},
  number = {2},
  pages = {157-71},
  issn = {0114-5916},
  doi = {10.2165/11584970-000000000-00000},
}