title: [One train may hide another...].
authors.affiliation: Service de chirurgie digestive, centre hospitalier de Belfort-Montbéliard - Montbéliard.
authors.forename: S
authors.initials: S
authors.lastname: Demaret
authors.forename: N
authors.initials: N
authors.lastname: Lamfichekh
mesh_terms: D018253:Adenoma, Villous / Q000175:diagnosis* / Q000601:surgery; D014670:Ampulla of Vater; D002758:Cholangiography; D003138:Common Bile Duct Neoplasms / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged