[Causal factor: chronic cerebrospinal venous insufficiency?].

@article{Westhofen2016CausalFC,
  title={[Causal factor: chronic cerebrospinal venous insufficiency?].},
  author={Martin Westhofen and Ingo Todt},
  journal={Laryngo- rhino- otologie},
  year={2016},
  volume={95 1},
  pages={4-5}
}