@article{a. stiekema2017measurements,
  title={Serial measurements of serum human epididymal protein 4 in patients at risk for ovarian cancer},
  author={a. stiekema,c.a.r. lok,m. v beurden,s.b. coffelt,w.j. van driel,g.g. kenter,c.m. korse},
  journal={European Journal of Gynaecological Oncology},
  volume={38},
  number={5},
  pages={750--755},
  doi = {10.12892/ejgo3930.2017},
  year={2017}
}