@article{jüni_husni_kasteler_rutjes_da costa_welch_nüesch_2014, 
  title={Oral or transdermal opioids for osteoarthritis of the knee or hip.}, 
  DOI={10.7892/boris.59424}, 
  publisher={WileyInterscience}, 
  author={Jüni, Peter and Husni, Elaine and Kasteler, Rahel and Rutjes, Anne W S and Da Costa, Bruno and Welch, Vivian and Nüesch, Eveline}, 
  year={2014}
  }