PT - JOURNAL ARTICLE AU - Patricia Guthrie TI - US Congress to consider limits on DTCA AID - 10.1503/cmaj.070484 DP - 2007 May 08 TA - Canadian Medical Association Journal PG - 1404--1404 VI - 176 IP - 10 4099 - http://www.cmaj.ca/content/176/10/1404.short 4100 - http://www.cmaj.ca/content/176/10/1404.full SO - CMAJ2007 May 08; 176