1 Department of Radiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; and Harvard Medical School, Boston, Massachusetts. Electronic address: [email protected].
2 Department of Radiology, SUNY Downstate Medical Center, Brooklyn, New York.
3 Department of Diagnostic Imaging, Monmouth Medical Center, Long Branch, New Jersey.
4 University of Massachusetts Medical School-Baystate, Springfield, Massachusetts.
5 Department of Radiology, Eastern Virginia Medical School, Norfolk, Virginia.
6 Harvard Medical School, Boston, Massachusetts.
7 Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee.