PT  - JOURNAL ARTICLE
ED  - ,
TI  - Purpose and Procedure
AID  - 10.1136/ebm.1999.4.130
DP  - 1999 Oct 01
TA  - Evidence Based Medicine
PG  - 130--131
VI  - 4
IP  - 5
4099  - http://ebm.bmj.com/content/4/5/130.short
4100  - http://ebm.bmj.com/content/4/5/130.full
SO  - Evid Based Med1999 Oct 01; 4