@article{y. yokoyama2002of,
  title={Mechanism of action of Tripterygium Wilfordii polyglycoside on experimental endometriosis},
  author={y. h. xiao,d. p. chen,j. h. yan,y. yokoyama},
  journal={European Journal of Gynaecological Oncology},
  volume={23},
  number={1},
  pages={63--67},
  doi = {10.12892/ejgo20020163},
  year={2002}
}