@misc{indiciae0c68cf0f4fee,
  title = {[Protected bacteriologic brushing in patients with severe copd].},
  author = {R Zalacain and V Achótegui and I Pascal and J Camino and J Barrón and V Sobradillo},
  year = {1997},
  doi = {10.1016/s0300-2896(15)30672-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/9072127/},
  note = {Source identifier: 9072127}
}