TY  - JOUR
A1  - Yashin, A.I.
A1  - Ukraintsev, S.V.
A1  - Anisimov, V.N.
T1  - Have the oldest old adults ever been frail in the past? A hypothesis that explains modern trends in survival
Y1  - 2001
DO  - 10.1093/gerona/56.10.B432
JF  - Journal of Gerontology: Biological Sciences
VL  - 56A
IS  - 10
SP  - B432
EP  - -B442

ER  -