RT Journal Article SR Electronic T1 The Chronic Perfusion Defect: Our Knowledge Is Still Hazy, but the Message Is Clear JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1049 OP 1050 VO 41 IS 6 A1 Alexander Gottschalk YR 2000 UL http://jnm.snmjournals.org/content/41/6/1049.abstract AB