@misc{indiciae20e77baecfbc,
  title = {Chronic rhinosinusitis--need for further classification?},
  author = {C Rudack and F Sachse and J Alberty},
  year = {2004},
  doi = {10.1007/s00011-003-1232-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/15021966/},
  note = {Source identifier: 15021966}
}