RT Journal Article SR Electronic T1 Focal Porta-Hepatis Defect on Nuclide Imaging JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 944 OP 945 VO 18 IS 9 A1 Paul J. Myerson YR 1977 UL http://jnm.snmjournals.org/content/18/9/944.abstract AB