Raphael C, Briscoe C, Davies J, Ian Whinnett Z, Manisty C, Sutton R, Mayet J, Francis DP, « Limitations of the New York Heart Association functional classification system and self-reported walking distances in chronic heart failure. », Heart, vol. 93, no 4, , p. 476–82 (PMID17005715, PMCID1861501, DOI10.1136/hrt.2006.089656)
Raphael C, Briscoe C, Davies J, Ian Whinnett Z, Manisty C, Sutton R, Mayet J, Francis DP, « Limitations of the New York Heart Association functional classification system and self-reported walking distances in chronic heart failure. », Heart, vol. 93, no 4, , p. 476–82 (PMID17005715, PMCID1861501, DOI10.1136/hrt.2006.089656)