title: Editor Note.
authors.affiliation: Department of Radiology, Mayo Clinic Arizona, Scottsdale, AZ, USA. johnson.daniel2@mayo.edu.
authors.forename: C Daniel
authors.initials: CD
authors.lastname: Johnson
authors.affiliation: Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA. editor@asoeditorial.org.
authors.forename: Charles M
authors.initials: CM
authors.lastname: Balch