title: [A 3-YEAR FOLLOW-UP ON THE CLINICAL COURSE OF CHRONIC HEART FAILURE IN AGED PERSONS].
mesh_terms: D002908:Chronic Disease; D005500:Follow-Up Studies; D005853:Geriatrics; D006333:Heart Failure; D006801:Humans; D013223:Statistics as Topic
keywords: GERIATRICS; HEART FAILURE, CONGESTIVE; STATISTICS