Surgery With or Without Radiation Therapy in Treating Patients With Primary Soft Tissue Sarcoma of the Retroperitoneum or Pelvis

St. Luke's Hospital Cancer Center, Bethlehem

Morgan Cancer Center at Lehigh Valley Hospital - Cedar Crest, Allentown

George Washington University Medical Center, Washington D.C.

Phoebe Cancer Center at Phoebe Putney Memorial Hospital, Albany

James Graham Brown Cancer Center at University of Louisville, Louisville

Ireland Cancer Center at University Hospitals of Cleveland and Case Western Reserve University, Cleveland

Cleveland Clinic Taussig Cancer Center, Cleveland

Cleveland Clinic - Wooster, Wooster

Middletown Regional Hospital, Middletown

Ruth G. McMillan Cancer Center at Greene Memorial Hospital, Xenia

David L. Rike Cancer Center at Miami Valley Hospital, Dayton

Samaritan North Cancer Care Center, Dayton

Veterans Affairs Medical Center - Dayton, Dayton

Charles F. Kettering Memorial Hospital, Kettering

St. Francis Hospital and Health Centers - Beech Grove Campus, Beech Grove

Saint Anthony Memorial Health Centers, Michigan City

Josephine Ford Cancer Center at Henry Ford Hospital, Detroit

Holden Comprehensive Cancer Center at University of Iowa, Iowa City

Medical College of Wisconsin Cancer Center, Milwaukee

Cardinal Bernardin Cancer Center at Loyola University Medical Center, Maywood

Joliet Oncology Hematology Associates, Limited - West, Joliet

Saint James Hospital and Health Centers Comprehensive Cancer Institute - Olympia Fields, Olympia Fields

Rush-Copley Cancer Care Center, Aurora

Carle Cancer Center at Carle Foundation Hospital, Urbana

CCOP - Carle Cancer Center, Urbana

Siteman Cancer Center at Barnes-Jewish Hospital, St Louis

Arkansas Cancer Research Center at University of Arkansas for Medical Sciences, Little Rock

CCOP - Scott and White Hospital, Temple

University of Colorado Cancer Center at University of Colorado Health Sciences Center, Aurora

American Fork Hospital, American Fork

Utah Cancer Specialists at UCS Cancer Center, Salt Lake City

Cottonwood Hospital Medical Center, Murray

LDS Hospital, Salt Lake City

McKay-Dee Hospital Center, Ogden

Utah Valley Regional Medical Center - Provo, Provo

Dixie Regional Medical Center - East Campus, St. George

City of Hope Comprehensive Cancer Center, Duarte

University of Florida Shands Cancer Center, Gainesville

Curtis & Elizabeth Anderson Cancer Institute at Memorial Health University Medical Center, Savannah

Robert H. Lurie Comprehensive Cancer Center at Northwestern University, Chicago

Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore

Massachusetts General Hospital Cancer Center, Boston

Brigham and Women's Hospital, Boston

Dana-Farber/Harvard Cancer Center at Dana Farber Cancer Institute, Boston

Cancer Research Center at Boston Medical Center, Boston

Roswell Park Cancer Institute, Buffalo

Blumenthal Cancer Center at Carolinas Medical Center, Charlotte

UVMC Cancer Care Center at Upper Valley Medical Center, Troy

Cancer Institute at Oregon Health and Science University, Portland

Abramson Cancer Center of the University of Pennsylvania, Philadelphia

Kimmel Cancer Center at Thomas Jefferson University - Philadelphia, Philadelphia

Fox Chase-Temple Cancer Center, Philadelphia

Western Pennsylvania Cancer Institute at Western Pennsylvania Hospital, Pittsburgh

U.T. Cancer Institute at University of Tennessee Medical Center, Knoxville

University Cancer Center at University of Washington Medical Center, Seattle

Cross Cancer Institute at University of Alberta, Edmonton

CancerCare Manitoba, Winnipeg

London Regional Cancer Program at London Health Sciences Centre, London

Princess Margaret Hospital, Toronto