title: Emergence of Crohn's disease in juvenile idiopathic arthritis during treatment with etanercept: a causal link or a mere coincidence?
authors.forename: Konstantinos A
authors.initials: KA
authors.lastname: Oikonomou
authors.forename: Andreas N
authors.initials: AN
authors.lastname: Kapsoritakis
authors.forename: Fotios D
authors.initials: FD
authors.lastname: Tsiopoulos
authors.forename: Antonios N
authors.initials: AN
authors.lastname: Tsikouras
authors.forename: Spyros
authors.initials: S
authors.lastname: Potamianos