@misc{10448,
  author = {Yvonne Lis and Walter Spitzer and Ronald Mann and Joy Chukwujindu and Margaret Thorogood and Stephen Evans and Samy Suissa and Jacques Lelorier},
  title = {A concurrent cohort study of oral contraceptive users from the VAMP research bank},
  year = {1993},
  journal = {Pharmacoepidemiology and Drug Safety},
  volume = {2},
  number = {1},
  pages = {51-63},
  url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/pds.2630020107},
  doi = {10.1002/pds.2630020107},
}