Followed up in the national FD reference center (Lyon) or in a FD French expert center: Angers, Bordeaux, Brest, Caen, Clermont-Ferrand, Lille, Marseille, Montpellier, Nice, Paris, Poitiers, Rennes, Saint-Etienne, Strasbourg.
who had an hepato-bilio-pancreatic MRI during their follow-up, since January 2002
