Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: keyword exact "distal ulcerative-colitis" cql: author exact 801000375125 or (type exact bookEditor and editor exact 801000375125) Add to list Journal Article A1 Concentrations of 5-ASA and Ac-5-ASA in human ileocolonic biopsy homogenates after oral 5-ASA preparations Martine De Vos (UGent) , HUGO VERDIEVEL (UGent) , Renaat Schoonjans, Marleen Praet, Marcus Bogaert (UGent) and Fabrice Barbier (1992) GUT. 33(10). p.1338-1342