PT  - JOURNAL ARTICLE
ED  - ,
TI  - Purpose and Procedure
AID  - 10.1136/ebm.1997.2.98
DP  - 1997 Aug 01
TA  - Evidence Based Medicine
PG  - 98--99
VI  - 2
IP  - 4
4099  - http://ebm.bmj.com/content/2/4/98.short
4100  - http://ebm.bmj.com/content/2/4/98.full
SO  - Evid Based Med1997 Aug 01; 2