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Geographic Isolation and the Risk for Chronic Obstructive Pulmonary Disease–Related Mortality: A Cohort Study
Thad E. Abrams, MD, MS; Mary Vaughan-Sarrazin, PhD; Vincent S. Fan, MD, MPH; Peter J. Kaboli, MD, MS
Annals of Internal Medicine 2011;155:80-86.
doi:10.7326/0003-4819-155-2-201107190-00003
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