Standardizing Measurement of Chronic Obstructive Pulmonary Disease Exacerbations: Reliability and Validity of a Patient-reported Diary

Nancy Kline Leidy(Health Outcomes Solutions (United States)), Sanjay Sethi(University at Buffalo, State University of New York), Paul Jones(Royal London Hospital), John H. Powers(Leidos (United States)), Teresa K. Wilcox, Laurie Roberts
American Journal of Respiratory and Critical Care Medicine
September 2, 2010
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