TY  - JOUR
A1  - Charlson, M.E.
A1  - Pompei, P.
A1  - Ales, K.L.
A1  - MacKenzie, C.R.
T1  - A new method of classifying prognostic comorbidity in longitudinal studies: development and validation
Y1  - 1987
DO  - 10.1016/0021-9681(87)90171-8
JF  - Journal of Chronic Diseases
VL  - 40
IS  - 5

ER  -