PT  - JOURNAL ARTICLE
AU  - Merrick Zwarenstein
AU  - Shaun Treweek
TI  - What kind of randomized trials do we need?
AID  - 10.1503/cmaj.082007
DP  - 2009 May 12
TA  - Canadian Medical Association Journal
PG  - 998--1000
VI  - 180
IP  - 10
4099  - http://www.cmaj.ca/content/180/10/998.short
4100  - http://www.cmaj.ca/content/180/10/998.full
SO  - CMAJ2009 May 12; 180