Creamer, P Factors associated with functional impairment in symptomatic knee osteoarthritis. [electronic resource] - Rheumatology (Oxford, England) May 2000 - 490-6 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1462-0324 Standard No.: 10.1093/rheumatology/39.5.490 doi Subjects--Topical Terms: AgedAnxiety--etiologyDisability EvaluationHealth SurveysHelplessness, LearnedHumansObesity--etiologyOsteoarthritis, Knee--physiopathologyPain--etiologyPain Measurement--classification