TY  - JOUR
A1  - Kelfve, S.
A1  - Thorslund, M.
A1  - Lennartsson, C.
T1  - Sampling and non-response bias on health-outcomes in surveys of the oldest old
Y1  - 2013
DO  - 10.1007/s10433-013-0275-7
VL  - 10
IS  - 3

ER  -