1. From the Imaging Institute (M.K.F., S.A.H., P.L.), Women’s Health Institute (U.C.P., R.F.), and Digestive Disease and Surgery Institute (C.Q.), Cleveland Clinic, 9500 Euclid Ave, Mail Code A21, Cleveland, OH 44195; and Digestive Disease and Surgery Institute, Cleveland Clinic Florida, Weston, Fla (A.G.T.).