[1] ALBERT EINSTEIN COLL MED,NEW HYDE PK,NY
[2] MICHIGAN STATE UNIV,DEPT OBSTET GYNECOL & REPROD BIOL,E LANSING,MI
[3] UNIV MICHIGAN,DEPT BIOSTAT,ANN ARBOR,MI
[4] MEM SLOAN KETTERING CANC CTR,DIV NURSING,NEW YORK,NY
[5] WASHINGTON UNIV,SCH MED,CTR RADIAT ONCOL,MALLINCKRODT INST RADIOL,ST LOUIS,MO
[6] PENN STATE UNIV,MILTON S HERSHEY MED CTR,DIV MED ONCOL,HERSHEY,PA 17033
[7] ASSOCIATES ONCOL & HEMATOL,ROCKVILLE,MD
[8] YALE UNIV,DEPT EPIDEMIOL & PUBL HLTH,DIV BIOSTAT,NEW HAVEN,CT
[9] CANDLELIGHTERS CHILDHOOD CANC FDN,PROFESS & LEGAL AFFAIRS,BETHESDA,MD
[10] UNIV ARKANSAS MED SCI HOSP,DEPT OBSTET & GYNECOL,DIV GYNECOL ONCOL,LITTLE ROCK,AR
[11] UNIV CALIF LOS ANGELES,SCH MED,DEPT MED,DIV HEMATOL & ONCOL,LOS ANGELES,CA
[12] VIRGINIA COMMONWEALTH UNIV,MED COLL VIRGINIA,DEPT OBSTET & GYNECOL,DIV GYNECOL ONCOL,RICHMOND,VA 23298