1. Division of Nuclear Medicine, Department of Radiology, University of Michigan Medical School (D.M.R., Y.-W.J., R.A.K., K.S.J., G.G., P.J.H.S., J.R., K.A.F.).
2. Division of Cardiovascular Medicine, Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan Medical School, Ann Arbor (V.L.M.).