@article{21ea1c0da0d84692812f37e6d848bbca,
title = "Enhanced prognostic value from cardiopulmonary exercise testing in chronic heart failure by non-linear analysis: oxygen uptake efficiency slope",
author = "Davies, \{Lewis Ceri\} and Roland Wensel and Panagiota Georgiadou and Mariantonietta Cicoira and Coats, \{Andrew J. S.\} and Piepoli, \{Massimo F.\} and Francis, \{Darrel P.\}",
year = "2006",
doi = "10.1093/eurheartj/ehi672",
language = "English",
volume = "27",
pages = "684--690",
journal = "European Heart Journal",
issn = "1522-9645",
publisher = "Oxford University Press",
number = "6",
}