title: Valvular-type membranous obstruction of the inferior vena cava with vertebral collaterals: color Doppler findings.
authors.affiliation: Sonoscan Ultrasonic Scan Centre, Coimbatore, India.
authors.forename: S Boopathy
authors.initials: SB
authors.lastname: Vijayaraghavan
authors.forename: Parasuram
authors.initials: P
authors.lastname: Ramchandran
authors.forename: Mathew
authors.initials: M
authors.lastname: Cherian
mesh_terms: D003097:Collateral Circulation; D005260:Female; D006801:Humans; D008875:Middle Aged; D018615:Ultrasonography, Doppler, Color; D014652:Vascular Diseases / Q000000981:diagnostic imaging*; D014682:Vena Cava, Inferior