title: Letter by Begg et al regarding article, "The effects of vitamin d supplementation on physical function and quality of life in older heart failure patients: a randomized controlled trial".
authors.forename: Gordon A
authors.initials: GA
authors.lastname: Begg
authors.forename: John G F
authors.initials: JG
authors.lastname: Cleland
authors.forename: Klaus K A
authors.initials: KK
authors.lastname: Witte
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D019587:Dietary Supplements; D015577:Geriatric Assessment; D006333:Heart Failure / Q000175:diagnosis / Q000178:diet therapy; D009043:Motor Activity / Q000187:drug effects; D011788:Quality of Life; D012720:Severity of Illness Index; D016896:Treatment Outcome; D014807:Vitamin D / Q000008:administration & dosage; D016032:Randomized Controlled Trials as Topic
chemical_list: D014807:Vitamin D