title: Letter: switches of 5-aminosalicylates in ulcerative colitis, risk of relapse and ascertainment bias.
authors.affiliation: Princess Royal Hospital, Farnborough, UK.
authors.forename: H
authors.initials: H
authors.lastname: Curtis
authors.forename: S
authors.initials: S
authors.lastname: Jones
authors.forename: P
authors.initials: P
authors.lastname: Treasure
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000627:therapeutic use*; D057915:Drug Substitution; D005260:Female; D006801:Humans; D015212:Inflammatory Bowel Diseases / Q000188:drug therapy*; D008297:Male; D055118:Medication Adherence; D019804:Mesalamine / Q000627:therapeutic use*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D019804:Mesalamine