@article{hong-hai hong2021of,
  title={Plasma
concentration of piRNAs in breast cancer and its association with metastasis},
  author={ping yin,zheng wang,yan chen,zhao-quan wen,hong-hai hong,yu-ling mao},
  journal={European Journal of Gynaecological Oncology},
  volume={42},
  number={2},
  pages={307--310},
  doi = {10.31083/j.ejgo.2021.02.2179},
  year={2021}
}