PT - JOURNAL ARTICLE AU - A Wesselius-De Casparis AU - S Braadbaart AU - G E Bergh-Bohlken AU - M Mimica TI - Treatment of chronic constipation with lactulose syrup: results of a double-blind study. AID - 10.1136/gut.9.1.84 DP - 1968 Feb 01 TA - Gut PG - 84--86 VI - 9 IP - 1 4099 - http://gut.bmj.com/content/9/1/84.short 4100 - http://gut.bmj.com/content/9/1/84.full SO - Gut1968 Feb 01; 9