1. Ten-year review and 5-year plan (vol 3); NIH publication No. 84-2358,1982
2. Epidemiology of respiratory diseases: task force report on state of knowledge, problems and needs,1980
3. Deaths due to chronic obstructive pulmonary disease and allied conditions;MMWR,1986
4. Trends in COPD morbidity and mortality in Tecumseh, Michigan;Higgins;Am Rev Respir Dis,1989
5. Use of emergency medical services by patients with decompensated obstructive lung disease;Murata;Ann Emerg Med,1989