PT - JOURNAL ARTICLE AU - Paul W. Armstrong TI - Balancing the cyclooxygenase portfolio AID - 10.1503/cmaj.060471 DP - 2006 May 23 TA - Canadian Medical Association Journal PG - 1581--1582 VI - 174 IP - 11 4099 - http://www.cmaj.ca/content/174/11/1581.short 4100 - http://www.cmaj.ca/content/174/11/1581.full SO - CMAJ2006 May 23; 174