PT - JOURNAL ARTICLE AU - ERNST, PETER B TI - “Déjà vu all over again” AID - 10.1136/gut.41.4.569 DP - 1997 Oct 01 TA - Gut PG - 569--570 VI - 41 IP - 4 4099 - http://gut.bmj.com/content/41/4/569.short 4100 - http://gut.bmj.com/content/41/4/569.full SO - Gut1997 Oct 01; 41