PT - JOURNAL ARTICLE AU - Laura Eggertson TI - <em>C. difficile</em> strain 20 times more virulent AID - 10.1503/cmaj.050470 DP - 2005 May 10 TA - Canadian Medical Association Journal PG - 1279--1279 VI - 172 IP - 10 4099 - http://www.cmaj.ca/content/172/10/1279.1.short 4100 - http://www.cmaj.ca/content/172/10/1279.1.full SO - CMAJ2005 May 10; 172