1. From the Department of Radiology, Complejo Asistencial Doctor Sótero del Río, Santiago, Chile (E.Z.); Department of Radiology, Mayo Clinic, Scottsdale, Ariz (C.M., N.D.); Department of Radiology, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 2nd Floor, Santiago 8330024, Chile (F.G., M.V., J.F.O., D.C., N.P., A.H.); and Health Time, Jaén, Spain (A.L.).