[Contract physician in the hospital - employee or independent work?].

@article{Frigger2013ContractPI,
  title={[Contract physician in the hospital - employee or independent work?].},
  author={Urs Fabian Frigger},
  journal={RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin},
  year={2013},
  volume={185 9},
  pages={
          907-8
        }
}