PT  - JOURNAL ARTICLE
ED  - ,
TI  - Purpose and procedure
AID  - 10.1136/ebmed.17.01.e4
DP  - 2012 Aug 01
TA  - Evidence Based Medicine
PG  - e4--e4
VI  - 17
IP  - 4
4099  - http://ebm.bmj.com/content/17/4/e4.short
4100  - http://ebm.bmj.com/content/17/4/e4.full
SO  - Evid Based Med2012 Aug 01; 17