1. From Wellman Laboratories of Photomedicine (G.J.T., K.H.S., C.R.K., M.S., B.E.B.), Department of Pathology (G.J.T., S.L.H., H.T.A.), Cardiology Division (H.Y., I.-K.J.), and Department of Radiology (E.F.H.), Massachusetts General Hospital and Harvard Medical School, Boston, Mass; and First Department of Internal Medicine (H.Y.), Kinki University School of Medicine, Osakasayama, Osaka, Japan.