TY - JOUR AU - Abellan van Kan, G; Rolland, Y; Bergman, H TI - The I.A.N.A Task Force on frailty assessment of older people in clinical practice JO - J Nutr Health Aging VL - 12 PY - 2008 DO - 10.1007/BF02982161 SP - 29 EP - 37 N1 - et al. ER -