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The Association Between Rate and Severity of Exacerbations in Chronic Obstructive Pulmonary Disease: An Application of a Joint Frailty-Logistic Model.
American journal of epidemiology [0002-9262] Sadatsafavi, Mohsen yr:2016 vol:184 iss:9 pg:681 -689
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Sin, Don D
Connett, John E
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