@misc{7756,
  author = {M. Persson and K. Harman and K. Thomas and J. Chalmers and Y. Vinogradova and S. Langan and J. Hippisley-Cox and S. Gran},
  title = {Using electronic health records to inform trial feasibility in a rare autoimmune blistering skin disease in England},
  year = {2021},
  journal = {BMC Med Res Methodol},
  volume = {21},
  number = {1},
  pages = {22},
  issn = {1471-2288},
  doi = {10.1186/s12874-021-01212-1},
}