TY  - JOUR
A1  - Boyd, C.M.
A1  - Weiss, C.O.
A1  - Halter, J.
A1  - Han, K.C.
A1  - Ershler, W.B.
A1  - Fries, L.
T1  - Comorbidity. Framework for evaluating disease severity measures in older adults with comorbidity
Y1  - 2007
JF  - Journal of Gerontology: Medical Sciences
VL  - 62A
IS  - 3
SP  - 286
EP  - -295

ER  -