The burden of COPD in the U.S.A.: results from the confronting COPD survey

Usefulness of the Medical Research Council (MRC) dyspnoea scale as a measure of disability in patients with chronic obstructive pulmonary disease

Janine Bestall, Elizabeth Paul, R. Garrod et al. · Thorax · 1999 · 2.9K citations · Full text

Medicine, Clinical Sciences, Rehabilitation Medicine +17

Chronic Obstructive Pulmonary Disease Surveillance—United States, 1971–2000

David M. Mannino, David M. Homa, Lara J. Akinbami et al. · Respiratory Care · 2002 · 1.3K citations · Full text

Medicine, Internal Medicine, Disease Surveillance +15

The Economic Burden of COPD

Sean D. Sullivan, Scott D. Ramsey, Todd A. Lee · CHEST Journal · 2000 · 581 citations

Medicine, Economics, Pharmacoeconomics +12

Impact of COPD in North America and Europe in 2000: subjects' perspective of Confronting COPD International Survey

Stephen I. Rennard, Marc Decramer, P. M. A. Calverley et al. · European Respiratory Journal · 2002 · 563 citations · Full text

Medicine, Health Sciences, Occupational Health +15

Patterns of Absolute Risk of Lung Cancer Mortality in Former Smokers

Michael T. Halpern, Brenda W. Gillespie, Kenneth E. Warner · JNCI Journal of the National Cancer Institute · 1993 · 326 citations

Medicine, Biostatistics, Oncology +17