RT Journal Article SR Electronic T1 Occlusion of Inferior Vena Cava—Features by Radionuclide Venography JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1007 OP 1012 VO 19 IS 9 A1 Wilfrido M. Sy A1 Ramon S. Lao A1 Anthony Nissen A1 Tay S. Kim YR 1978 UL http://jnm.snmjournals.org/content/19/9/1007.abstract AB