RT Journal Article SR Electronic T1 Prolongation of Proton Spin Lattice Relaxation Times in Regionally Ischemic Tissue from Dog Hearts JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 449 OP 453 VO 21 IS 5 A1 Williams, Eric S. A1 Kaplan, Jerome I. A1 Thatcher, Frederick A1 Zimmerman, Gerald A1 Knoebel, Suzanne B. YR 1980 UL http://jnm.snmjournals.org/content/21/5/449.abstract AB