title: Reply to Drs. Silva and Santana's letter.
authors.forename: Gert
authors.initials: G
authors.lastname: Van Assche
authors.forename: C Janneke
authors.initials: CJ
authors.lastname: van der Woude
authors.forename: Axel
authors.initials: A
authors.lastname: Dignass
mesh_terms: D003424:Crohn Disease / Q000175:diagnosis* / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy