title: Treatment-treatment interactions.
authors.forename: John
authors.initials: J
authors.lastname: Oldham
mesh_terms: D015928:Cognitive Behavioral Therapy; D003424:Crohn Disease / Q000150:complications; D004347:Drug Interactions; D006801:Humans; D007326:Institutionalization; D001523:Mental Disorders / Q000150:complications / Q000188:drug therapy* / Q000628:therapy; D019338:Polypharmacy