PT - JOURNAL ARTICLE AU - Hill, M J AU - Drasar, B S TI - The normal colonic bacterial flora. AID - 10.1136/gut.16.4.318 DP - 1975 Apr 01 TA - Gut PG - 318--323 VI - 16 IP - 4 4099 - http://gut.bmj.com/content/16/4/318.short 4100 - http://gut.bmj.com/content/16/4/318.full SO - Gut1975 Apr 01; 16