["Admission letter": an indicator of frailty in elderly emergency department patients].
Philippe
P
Caillet
Stéphane
S
Herbaud
Jean-Louis
JL
Lejonc
Elena
E
Paillaud
D000368:Aged; D000369:Aged, 80 and over; D004636:Emergency Service, Hospital; D016330:Frail Elderly; D006305:Health Status Indicators; D006801:Humans; D011446:Prospective Studies; D012017:Referral and Consultation