title: "The ABC of GOLD A-B-C-D".
authors.affiliation: Center of Expertise for Chronic Organ Failure, Horn, The Netherlands.
authors.forename: Frits M E
authors.initials: FM
authors.lastname: Franssen
authors.forename: Meilan K
authors.initials: MK
authors.lastname: Han
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis* / Q000503:physiopathology*; D015272:Pulmonary Medicine / Q000592:standards*