[Drug interactions caused by phytopharmaceuticals. Don't underestimate herbs!].

@article{Stiefelhagen2002DrugIC,
  title={[Drug interactions caused by phytopharmaceuticals. Don't underestimate herbs!].},
  author={Peter U Stiefelhagen},
  journal={MMW Fortschritte der Medizin},
  year={2002},
  volume={144 6},
  pages={6-9}
}