@misc{indiciaec864840f2ca7,
  title = {[Two simple methods in preoperative functional analysis. Ergospirometry using Douglas' bag and Arnaud's bronchus blockade].},
  author = {L Kühner},
  year = {1972},
  doi = {10.1007/bf02100542},
  url = {https://pubmed.ncbi.nlm.nih.gov/4641506/},
  note = {Source identifier: 4641506}
}