PT - JOURNAL ARTICLE AU - Ugolev, A. M. TI - Membrane digestion AID - 10.1136/gut.13.9.735 DP - 1972 Sep 01 TA - Gut PG - 735--747 VI - 13 IP - 9 4099 - http://gut.bmj.com/content/13/9/735.short 4100 - http://gut.bmj.com/content/13/9/735.full SO - Gut1972 Sep 01; 13