[1] UNIV CALIF SAN DIEGO,SCH MED,DEPT COMMUNITY MED,LA JOLLA,CA 92093
[2] GEISINGER MED CTR,DEPT RADIOL,DANVILLE,PA 17822
[3] LOUISIANA STATE UNIV,MED CTR,DEPT RADIOL,NEW ORLEANS,LA 70112
[4] BALBOA NAVAL HOSP,DEPT RADIOL,SAN DIEGO,CA
[5] HAMILTON GEN HOSP,DEPT RADIOL,HAMILTON L8L 2X2,ONTARIO,CANADA