@misc{indiciaed04e5ae27a70,
  title = {Interval exercise versus continuous exercise in patients with moderate to severe chronic obstructive pulmonary disease--study protocol for a randomised controlled trial [ISRCTN11611768].},
  author = {Milo A Puhan and Gilbert Büsching and Evelien VanOort and Christian Zaugg and Holger J Schünemann and Martin Frey},
  year = {2004},
  doi = {10.1186/1471-2466-4-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/15310394/},
  note = {Source identifier: 15310394}
}