1Clegg A,Young J.Iliffe S,et al.Frailty in elderly people[J].Lancet,2013,381(9868):752-762.
2Zaslavsky O,Cochrane BB,Thompson HJ,et al.Frailty:areview of the first decade of research[J].Biol Res Nurs,2013,15(4):422-432.
3Rockwood K,Stadnyk K,MacKnight C,et al.A brief clinicalinstrument to classify frailty in elderly people[J].Lancet,1999,353(9148):205-206.
4Rockwood K,Song X,MacKnight C,et al.A global clinical mea-sure of fitness and frailty in elderly people[J].CMAJ,2005,173(5):489-495.
5Fried LP,Ferrucci L,Darer J,et al.Untangling the concepts ofdisability,frailty,and comorbidity:implications for improved tar-geting and care[J].J Gerontol A Biol Sci Med Sci,2004,59(3):255-263.
6Hogan,DB.MacKnight C,Bergman H;Models,definitions,andcriteria of frailty[J].Aging Clin Exp Res,2003,15(3):1-29.
7Morley JE,Malmstrom TK,Miller DK.A simple frailtyquestionnaire(FRAIL)predicts outcomes in middle aged AfricanAmericans[J].J Nutr Health Aging,2012,16(7):601-608.
8Ensrud KE,Ewing SK,Taylor BC,et al.Comparison of 2 frailtyindexes for prediction of falls,disability,fractures,and death inolder women[J].Arch Intern Med,2008,168(4):382-389.
