[1] UNIV TENNESSEE, CTR HLTH SCI, DEPT SURG, MEMPHIS, TN 38163 USA
[2] NCI, DIV CANC PREVENT & CONTROL, EARLY DETECT BRANCH, BETHESDA, MD 20205 USA
[3] ST BARNABAS HOSP, DEPT PATHOL, LIVINGSTON, NJ 07039 USA
[4] MONTEFIORE MED CTR, ALBERT EINSTEIN COLL MED, DEPT PATHOL, BRONX, NY 10467 USA
[5] NCI, DIV CANC PREVENT & CONTROL, EARLY DETECT BRANCH, BETHESDA, MD 20205 USA
[6] AMER CANC SOC, DEPT MED AFFAIRS, NEW YORK, NY 10017 USA
[7] NEW ENGLAND DEACONESS HOSP, DEPT SURG ONCOL, BOSTON, MA 02215 USA
[8] JOINT COMMISS ACCREDITAT HEALTHCARE ORG, DEPT RES & DEV, CHICAGO, IL 60611 USA