title: "Downhill" esophageal varices secondary to superior vena cava thrombosis and abnormal factor V.
authors.affiliation: Fundación Santa Fe de Bogotá, Servicio de Endoscopia, Hospital Universitario San Ignacio, Bogotá, Colombia. Electronic address: andresgomezmd@hotmail.com.
authors.forename: A J
authors.initials: AJ
authors.lastname: Gómez-Aldana
authors.affiliation: Hospital El Tunal, Servicio de Gastroenterología, Universidad Nacional de Colombia, Bogotá, Colombia.
authors.forename: M A
authors.initials: MA
authors.lastname: Gómez-Zuleta