S0433 Iodine I 131 Tositumomab, Rituximab, and Combination Chemotherapy in Treating Older Patients With Stage II, Stage III, or Stage IV Non-Hodgkin's Lymphoma

James P. Wilmot Cancer Center at University of Rochester Medical Center, Rochester

Falck Cancer Center at Arnot Ogden Medical Center, Elmira

Rutherford Hospital, Rutherfordton

CCOP - Upstate Carolina, Spartanburg

Gibbs Regional Cancer Center at Spartanburg Regional Medical Center, Spartanburg

AnMed Cancer Center, Anderson

Charles B. Eberhart Cancer Center at DeKalb Medical Center, Decatur

Gwinnett Medical Center, Lawrenceville

Kennestone Cancer Center at Wellstar Kennestone Hospital, Marietta

WellStar Cobb Hospital, Austell

Harbin Clinic Cancer Center - Medical Oncology, Rome

Piedmont Hospital, Atlanta

CCOP - Atlanta Regional, Atlanta

Cleveland Clinic Cancer Center, Independence

Cleveland Clinic Taussig Cancer Center, Cleveland

Cleveland Clinic - Wooster, Wooster

Clinton Memorial Hospital, Wilmington

Wayne Hospital, Greenville

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

Grandview Hospital, Dayton

Good Samaritan Hospital, Dayton

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

Samaritan North Cancer Care Center, Dayton

CCOP - Dayton, Dayton

Charles F. Kettering Memorial Hospital, Kettering

Blanchard Valley Medical Associates, Findlay

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

Reid Hospital & Health Care Services, Richmond

CCOP - Montana Cancer Consortium, Billings

Hematology-Oncology Centers of the Northern Rockies - Billings, Billings

Northern Rockies Radiation Oncology Center, Billings

St. Vincent Healthcare Cancer Care Services, Billings

Great Falls Clinic - Main Facility, Great Falls

Sletten Cancer Institute at Benefis Healthcare, Great Falls

Great Falls

Northern Montana Hospital, Havre

St. Peter's Hospital, Helena

St. James Healthcare Cancer Care, Butte

Bozeman Deaconess Cancer Center, Bozeman

Community Medical Center, Missoula

Guardian Oncology and Center for Wellness, Missoula

Montana Cancer Center at St. Patrick Hospital and Health Sciences Center, Missoula

Glacier Oncology, PLLC, Kalispell

Kalispell Medical Oncology at KRMC, Kalispell

Kalispell Regional Medical Center, Kalispell

Cardinal Bernardin Cancer Center at Loyola University Medical Center, Maywood

Saint Anthony's Hospital at Saint Anthony's Health Center, Alton

Good Samaritan Regional Health Center, Mount Vernon

Midwest Hematology Oncology Group, Incorporated, St Louis

CCOP - St. Louis-Cape Girardeau, St Louis

David C. Pratt Cancer Center at St. John's Mercy, St Louis

Saint Francis Medical Center, Cape Girardeau

Cotton-O'Neil Cancer Center, Topeka

Rocky Mountain Oncology, Casper

Welch Cancer Center at Sheridan Memorial Hospital, Sheridan

Fred Hutchinson Cancer Research Center, Seattle

Harborview Medical Center, Seattle

Minor and James Medical, PLLC, Seattle

Group Health Central Hospital, Seattle

Polyclinic First Hill, Seattle

St. Joseph Cancer Center, Bellingham

Olympic Hematology and Oncology, Bremerton

Cancer Care Northwest - Spokane South, Spokane

Evergreen Hematology and Oncology, PS, Spokane

Alaska Regional Hospital Cancer Center, Anchorage

Arizona Cancer Center at University of Arizona Health Sciences Center, Tucson

City of Hope Comprehensive Cancer Center, Duarte

Northside Hospital Cancer Center, Atlanta

Saint Joseph's Hospital of Atlanta, Atlanta

Southern Regional Medical Center, Riverdale

University of Michigan Comprehensive Cancer Center, Ann Arbor

Billings Clinic - Downtown, Billings

Big Sky Oncology, Great Falls

Montana Cancer Specialists at Montana Cancer Center, Missoula

Middletown Regional Hospital, Franklin

UVMC Cancer Care Center at Upper Valley Medical Center, Troy

Swedish Cancer Institute at Swedish Medical Center - First Hill Campus, Seattle

University Cancer Center at University of Washington Medical Center, Seattle