@article{p.a.s. johnstone2011survival,
  title={Prolonged survival after episiotomy recurrence of cervical cancer complicating pregnancy},
  author={i. hafeez,b.d. lawenda,j.m. schilder,p.a.s. johnstone},
  journal={European Journal of Gynaecological Oncology},
  volume={32},
  number={2},
  pages={211--213},
  doi = {10.12892/ejgo201102211},
  year={2011}
}