@article{y.s. ho2011systemic,
  title={A systemic review of human papillomavirus studies: global publication comparison and research trend analyses from 1993 to 2008},
  author={h.w. lin,t.c. yu,y.s. ho},
  journal={European Journal of Gynaecological Oncology},
  volume={32},
  number={2},
  pages={133--140},
  doi = {10.12892/ejgo201102133},
  year={2011}
}