PT - JOURNAL ARTICLE AU - Quirke, P TI - <em>Mycobacterium avium</em> subspecies <em>paratuberculosis</em> is a cause of Crohn's disease AID - 10.1136/gut.49.6.757 DP - 2001 Dec 01 TA - Gut PG - 757--760 VI - 49 IP - 6 4099 - http://gut.bmj.com/content/49/6/757.short 4100 - http://gut.bmj.com/content/49/6/757.full SO - Gut2001 Dec 01; 49