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ORIGINAL RESEARCH

Letter to the Editor Response

Pages 445-446 | Published online: 20 Dec 2010

REFERENCES

  • Laviolette L, O’Donnell DE, Webb KA, Performance during constant workrate cycling exercise in women with COPD and hyperinflation. COPD 2009; 6:340–351.
  • Casaburi R, Porszasz J. Constant work rate exercise testing: A tricky measure of exercise tolerance. COPD 2009; 6:317–319.
  • Neder JA, Jones PW, Nery LE, . Determinants of the exercise endurance capacity in patients with chronic obstructive pulmonary disease. The power-duration relationship. Am J Respir Crit Care Med 2000; 162:497–504.
  • O’Donnell DE, Laveneziana P, Ora J, Evaluation of acute bronchodilator reversibility in patients with symptoms of GOLD stage I COPD. Thorax 2009; 64:216–223.

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