[1
]From the Departments of Radiology (N.H., M.K., I.B., E.S., M.J.G., I.P.), Medical
Physics (H.V.), Epidemiology and Biostatistics (J.Z., M.C.), and Surgery (J.G.A.),
Memorial Sloan Kettering Cancer Center, 1275 York Ave, Box 29, New York, NY 10065.