title: Short, simple, but still of uncertain value.
authors.forename: Robert M
authors.initials: RM
authors.lastname: Kaplan
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D029424:Pulmonary Disease, Chronic Obstructive / Q000503:physiopathology*; D011788:Quality of Life; D011795:Surveys and Questionnaires