title: Risk indexes for COPD exacerbations II.
authors.forename: Jan Willem H
authors.initials: JW
authors.lastname: Kocks
authors.forename: Thys
authors.initials: T
authors.lastname: van der Molen
mesh_terms: D006306:Health Surveys; D006760:Hospitalization; D006801:Humans; D011237:Predictive Value of Tests; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications* / Q000175:diagnosis; D011788:Quality of Life; D012307:Risk Factors; D012720:Severity of Illness Index