共 11 条
[1]
A NEW METHOD OF CLASSIFYING PROGNOSTIC CO-MORBIDITY IN LONGITUDINAL-STUDIES - DEVELOPMENT AND VALIDATION
[J].
JOURNAL OF CHRONIC DISEASES,
1987, 40 (05)
:373-383
[3]
DEVITA C, 1994, LANCET, V343, P1115
[4]
LUTHER P, 1995, GERIATR CARDIOL, P32