TY  - RPRT
TI  - Interval exercise versus continuous exercise in patients with moderate to severe chronic obstructive pulmonary disease--study protocol for a randomised controlled trial [ISRCTN11611768].
AU  - Milo A Puhan
AU  - Gilbert Büsching
AU  - Evelien VanOort
AU  - Christian Zaugg
AU  - Holger J Schünemann
AU  - Martin Frey
PY  - 2004
DO  - 10.1186/1471-2466-4-5
UR  - https://pubmed.ncbi.nlm.nih.gov/15310394/
ID  - 15310394
ER  -