@misc{indiciaec98ae88367ad,
  title = {[Powder inhalation systems].},
  author = {M Kohlhäufl and P Haidl and Th Voshaar and K Häussinger and D Köhler},
  year = {2004},
  doi = {10.1055/s-2004-831845},
  url = {https://pubmed.ncbi.nlm.nih.gov/15386209/},
  note = {Source identifier: 15386209}
}