Has proliferation of bile ductules clinical significance?

@article{Popper1962HasPO,
  title={Has proliferation of bile ductules clinical significance?},
  author={Hans Popper and Fenton Schaffner and Tibor Barka},
  journal={Acta hepato-splenologica},
  year={1962},
  volume={9},
  pages={129-39}
}