@misc{8265,
  author = {Y. Vinogradova and C. Coupland and J. Hippisley-Cox},
  title = {Use of hormone replacement therapy and risk of venous thromboembolism: nested case-control studies using the QResearch and CPRD databases},
  year = {2019},
  journal = {Bmj},
  volume = {364},
  pages = {k4810},
  issn = {0959-8138},
  doi = {10.1136/bmj.k4810},
}