PT  - JOURNAL ARTICLE
AU  - M C Gulliford
TI  - Evaluating prognostic factors: implications for measurement of health care outcome.
AID  - 10.1136/jech.46.4.323
DP  - 1992 Aug 01
TA  - Journal of Epidemiology and Community Health
PG  - 323--326
VI  - 46
IP  - 4
4099  - http://jech.bmj.com/content/46/4/323.short
4100  - http://jech.bmj.com/content/46/4/323.full
SO  - J Epidemiol Community Health1992 Aug 01; 46