title: Psychometric properties of four QOL instruments.
authors.forename: Neil
authors.initials: N
authors.lastname: Oldridge
authors.forename: L
authors.initials: L
authors.lastname: Lim
authors.forename: G
authors.initials: G
authors.lastname: Guyatt
mesh_terms: D000072038:Cardiac Rehabilitation; D002318:Cardiovascular Diseases / Q000523:psychology*; D006305:Health Status Indicators; D006801:Humans; D011594:Psychometrics; D011788:Quality of Life