title: Biliary ileus.
authors.affiliation: Servicio de Medicina Interna, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain.
authors.forename: F
authors.initials: F
authors.lastname: Ruiz Laiglesia
authors.affiliation: Servicio de Medicina Interna, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain. Electronic address: jlcv2002@hotmail.com.
authors.forename: J L
authors.initials: JL
authors.lastname: Camacho Velásquez