References
- Pauwels R A, Anthonisen N, Bailey W C, Barnes P J, Buist A S, Calverley P, Clark T, Fabbri L, Fukuchi Y, Grouse L, Hogg J C, Jenkins C, Postma D S, Rabe K F, Ramsey S D, Rennard S I, Rodriguez‐Roisin R, Siafakas N, Sullivan S D, Tan W‐C. Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease. 2003, www.goldcopd.com (accessed May 1, 2004)
- Celli B R, MacNee W, Agusti A, Anzueto A, Berg B, Buist A S, Calverley P, Chavannes N, Dillard T, Fahy B, Fein A, Heffner J E, Lareau S, Meek P, Martinez F J, McNicholas W T, Muris J, Austegard E, Pauwels R A, Rennard S, Rossi A, Siafakas N, Tiep B, Vestbo J, Wouters E FM, ZuWallack R. Standards for the diagnosis and treatment of patients with COPD: a summary of the ATS/ERS position paper. Eur Respir J 2004; 23: 932–946, [PUBMED], [INFOTRIEVE]
- Borg G AV. Psychological bases of perceived exertion. Med Sci Sports Exerc 1982; 14: 377–381, [PUBMED], [INFOTRIEVE]
- O'Donnell D E, Fluge T, Gerken F, Hamilton A, Make B, Magnussen H. Effects of tiotropium on lung hyperinflation, dynamic hyperinflation and exercise tolerance in patients with COPD. Eur Respir J, (in press)
- Eakin E G, Resnikoff P M, Prewitt L M, Ries A L, K. R.M. Validation of a new dyspnea measure: the UCSD shortness of breath questionnaire. Chest 1998; 113: 619–624, [PUBMED], [INFOTRIEVE]
- Jones P W, Quirk F H, Baverstock C M, Littlejones P. A self‐completed measure of health status for chronic airflow limitation: the St. George's respiratory questionnaire. Am Rev Respir Dis 1992; 145: 1321–1327, [PUBMED], [INFOTRIEVE]
- Guyatt G H, German L B, Townsend M, Pugsley S O, Chambers L W. A measure of quality of life for clinical trials in chronic lung disease. Thorax 1987; 42: 773–778, [PUBMED], [INFOTRIEVE]
- Mahler D A, Ward J, Fierro‐Carrion G, Waterman L A, Lentine T F, Mejia‐Alfaro R, Baird J C. Development of self‐administered versions of modified baseline and transition dyspnea indexes in COPD. COPD 2004; 1(2), XX‐XX