@misc{indiciae11a91c6957bc,
  title = {Difficult decisions in endoscopic sinus surgery.},
  author = {M Friedman and J S Josephson and D W Kennedy and D R Kelly and D H Rice and G A Sisson},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2771421/},
  note = {Source identifier: 2771421}
}