Artaza-Artabe, Iņaki The relationship between nutrition and frailty: Effects of protein intake, nutritional supplementation, vitamin D and exercise on muscle metabolism in the elderly. A systematic review. [electronic resource] - Maturitas Nov 2016 - 89-99 p. digital Publication Type: Journal Article; Review; Systematic Review ISSN: 1873-4111 Standard No.: 10.1016/j.maturitas.2016.04.009 doi Subjects--Topical Terms: AgedAged, 80 and overDietary ProteinsDietary SupplementsPersons with DisabilitiesExerciseFemaleFrail ElderlyGeriatric AssessmentHumansMaleMuscle, Skeletal--metabolismNutritional StatusRisk FactorsVitamin D--blood