The Association Between Rate and Severity of Exacerbations in Chronic Obstructive Pulmonary Disease: An Application of a Joint Frailty-Logistic Model.
Sadatsafavi M, Sin DD, Zafari Z, Criner G, Connett JE, Lazarus S, Han M, Martinez F, Albert R. The Association Between Rate and Severity of Exacerbations in Chronic Obstructive Pulmonary Disease: An Application of a Joint Frailty-Logistic Model. Am J Epidemiol. 2016 Nov 01; 184(9):681-689.