[Comments on studies on the prevalence of frailty in the elderly in Spain].
María Victoria
MV
Castell Alcalá
Ana Belén
AB
Melgar Borrego
Rosa
R
Julián Viñals
María Canto
MC
de Hoyos Alonso
D000368:Aged; D016021:Epidemiologic Studies; D005260:Female; D016330:Frail Elderly / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D015995:Prevalence; D013030:Spain / Q000453:epidemiology