RT Journal Article SR Electronic T1 Focal Porta Hepatis Scintiscan Defects: What Is Their Significance? JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1007 OP 1012 VO 16 IS 11 A1 Robert R. McClelland YR 1975 UL http://jnm.snmjournals.org/content/16/11/1007.abstract AB