共 21 条
[1]
[Anonymous], 1997, AM J MED
[3]
A NEW METHOD OF CLASSIFYING PROGNOSTIC CO-MORBIDITY IN LONGITUDINAL-STUDIES - DEVELOPMENT AND VALIDATION
[J].
JOURNAL OF CHRONIC DISEASES,
1987, 40 (05)
:373-383
[4]
CUMMINGS SR, 1990, CLIN ORTHOP RELAT R, P163
[9]
Extracts from "Clinical Evidence" - Hip fracture
[J].
BRITISH MEDICAL JOURNAL,
2001, 322 (7292)
:968-975

