1) Pollack LR, Litwack-Harrison S, et al:Patterns and Predictors of Frailty Transitions in Older Men:The Osteoporotic Fractures in Men Study. J Am Geriatr Soc, 65(11):2473-2479, 2017.
2) Trevisan C, Veronese N, et al:Factors Influencing Transitions Between Frailty States in Elderly Adults:The Progetto Veneto Anziani Longitudinal Study. J Am Geriatr Soc, 65(1):179-184, 2017.