RT Journal Article SR Electronic T1 Prognostic Value of Myocardial Perfusion Imaging with Exercise and/or Dipyridamole Hyperemia in Patients with Preexisting Left Bundle Branch Block JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 579 OP 581 VO 39 IS 4 A1 Alin Nigam A1 Dennis P. Humen YR 1998 UL http://jnm.snmjournals.org/content/39/4/579.abstract AB