Radiation Therapy With or Without Optional Tamoxifen in Treating Women With Ductal Carcinoma in Situ

Memorial Sloan-Kettering Cancer Center, New York

CCOP - North Shore University Hospital, Manhasset

North Shore University Hospital, Manhasset

Long Island Jewish Medical Center, New Hyde Park

Long Island College Hospital, Brooklyn

CCOP - Hematology-Oncology Associates of Central New York, Syracuse

Mercy Cancer Institute at Mercy Hospital, Pittsburgh

Hillman Cancer Center at University of Pittsburgh Cancer Institute, Pittsburgh

Mount Nittany Medical Center, State College

York Cancer Center at Wellspan Health, York

St. Luke's Hospital Cancer Center, Bethlehem

Easton Regional Cancer Center at Easton Hospital, Easton

Mercy Hospital Cancer Center - Scranton, Scranton

Frank M. and Dorothea Henry Cancer Center at Geisinger Wyoming Valley Medical Center, Wilkes-Barre

Rosenfeld Cancer Center at Abington Memorial Hospital, Abington

Bryn Mawr Hospital, Bryn Mawr

Mercy Fitzgerald Hospital, Darby

St. Mary Regional Cancer Center, Langhorne

CCOP - MainLine Health, Wynnewood

Lankenau Cancer Center at Lankenau Hospital, Wynnewood

Fox Chase-Temple Cancer Center CCOP Research Base, Philadelphia

CCOP - Christiana Care Health Services, Newark

Lombardi Comprehensive Cancer Center at Georgetown University Medical Center, Washington D.C.

Suburban Hospital, Bethesda

Greater Baltimore Medical Center, Baltimore

DeCesaris Cancer Institute at Anne Arundel Medical Center, Annapolis

Peninsula Regional Medical Center, Salisbury

Martha Jefferson Hospital Cancer Care Center, Charlottesville

Wayne Memorial Hospital, Incorporated, Goldsboro

Wayne Radiation Oncology, Goldsboro

Rex Cancer Center at Rex Hospital, Raleigh

Duke Comprehensive Cancer Center, Durham

Wilmed Radiation Oncology Services, Wilson

Batte Cancer Center at Northeast Medical Center, Concord

Rutherford Hospital, Rutherfordton

Moore Regional Community Hospital Comprehensive Cancer Center, Pinehurst

Zimmer Cancer Center at New Hanover Regional Medical Center, Wilmington

Lenoir Memorial Cancer Center, Kinston

Pardee Memorial Hospital, Hendersonville

Palmetto Health South Carolina Cancer Center, Columbia

CCOP - Upstate Carolina, Spartanburg

Gibbs Regional Cancer Center at Spartanburg Regional Medical Center, Spartanburg

Bon Secours St. Francis Health System, Greenville

CCOP - Greenville, Greenville

AnMed Health Cancer Center, Anderson

Northeast Georgia Medical Center, Gainesville

Nancy N. and J. C. Lewis Cancer and Research Pavilion at St. Joseph's/Candler, Savannah

Mayo Clinic - Jacksonville, Jacksonville

University of Miami Sylvester Comprehensive Cancer Center, Miami

Baptist-South Miami Regional Cancer Program, Miami

Lakeland Regional Cancer Center at Lakeland Regional Medical Center, Lakeland

University of Mississippi Medical Center, Jackson

Cancer Treatment Center for Southern Kentucky, Bowling Green

Merle M. Mahr Cancer Center at Regional Medical Center of Hopkins County, Madisonville

Grady Memorial Hospital, Delaware

Licking Memorial Cancer Care Program at Licking Memorial Hospital, Newark

Mount Carmel Cancer Services at Mount Carmel St. Ann's Hospital, Westerville

CCOP - Columbus, Columbus

Mount Carmel Health - West Hospital, Columbus

Promedica Cancer Center at Flower Hospital, Sylvania

St. Vincent Mercy Medical Center, Toledo

Medical University of Ohio Cancer Center, Toledo

St. Charles Mercy Hospital, Oregon

Northwest Ohio Oncology Center, Maumee

CCOP - Toledo Community Hospital, Toledo

Toledo Clinic, Incorporated - Main Clinic, Toledo

Case Comprehensive Cancer Center, Cleveland

MetroHealth's Cancer Care Center at MetroHealth Medical Center, Cleveland

Hillcrest Cancer Center at Hillcrest Hospital, Mayfield Heights

Cleveland Clinic Taussig Cancer Center, Cleveland

McDowell Cancer Center at Akron General Medical Center, Akron

St. Joseph Cancer Center at St. Joseph Health Center, Warren

Mercy Cancer Center at Mercy Medical Center, Canton

Firelands Regional Medical Center, Sandusky

Cancer Treatment Center at Good Samaritan Hospital, Cincinnati

Bethesda North Hospital, Cincinnati

Mercy Medical Center, Springfield

Adena Regional Medical Center, Chillicothe

Strecker Cancer Center at Marietta Memorial Hospital, Marietta

St. Rita's Medical Center, Lima

Lima Memorial Hospital, Lima

Blanchard Valley Medical Associates, Findlay

St. John's Cancer Center at St. John's Medical Center, Anderson

Center for Cancer Therapy at LaPorte Hospital and Health Services, La Porte

Saint Anthony Memorial Health Centers, Michigan City

Elkhart General Hospital, Elkhart

CCOP - Northern Indiana CR Consortium, South Bend

Memorial Hospital of South Bend, South Bend

Parkview Regional Cancer Center at Parkview Health, Fort Wayne

Howard Community Hospital at Howard Regional Health System, Kokomo

Regional Cancer Institute at Bloomington Hospital, Bloomington

William Beaumont Hospital - Royal Oak Campus, Royal Oak

St. John Macomb Hospital, Warren

CCOP - Michigan Cancer Research Consortium, Ann Arbor

Josephine Ford Cancer Center at Henry Ford Hospital, Detroit

Van Elslander Cancer Center at St. John Hospital and Medical Center, Grosse Pointe Woods

Genesys Hurley Cancer Institute, Flint

Great Lakes Cancer Institute at McLaren Regional Medical Center, Flint

Seton Cancer Institute - Saginaw, Saginaw

MidMichigan Medical Center - Midland, Midland

Breslin Cancer Center at Ingham Regional Medical Center, Lansing

Borgess Medical Center, Kalamazoo

Bronson Methodist Hospital, Kalamazoo

Lakeland Cancer Care Center at Lakeland Hospital - St. Joseph, Saint Joseph

Foote Hospital, Jackson

Hickman Cancer Center at Bixby Medical Center, Adrian

Green Bay Oncology, Limited - Escanaba, Escanaba

CCOP - Grand Rapids, Grand Rapids

Lacks Cancer Center at Saint Mary's Mercy Medical Center, Grand Rapids

Spectrum Health Cancer Care - Butterworth Campus, Grand Rapids

Munson Medical Center, Traverse City

Northern Michigan Hospital, Petoskey

Green Bay Oncology, Limited - Iron Mountain, Iron Mountain

Upper Michigan Cancer Center at Marquette General Hospital, Marquette

St. Luke's Hospital, Cedar Rapids

Cedar Rapids Oncology Associates, Cedar Rapids

Mercy Regional Cancer Center at Mercy Medical Center, Cedar Rapids

Community Memorial Hospital Cancer Care Center, Menomonee Falls

Regional Cancer Center at Oconomowoc Memorial Hospital, Oconomowoc

Waukesha Memorial Hospital Regional Cancer Center, Waukesha

Columbia St. Mary's Cancer Care Center, Milwaukee

Vince Lombardi Cancer Clinic at Aurora St. Luke's Medical Center, Milwaukee

West Allis Memorial Hospital, West Milwaukee

Bay Area Cancer Care Center at Bay Area Medical Center, Marinette

Green Bay Oncology, Limited - Oconto Falls, Oconto Falls

Green Bay Oncology, Limited - Sturgeon Bay, Sturgeon Bay

Green Bay Oncology, Limited at St. Mary's Hospital, Green Bay

St. Mary's Hospital Medical Center - Green Bay, Green Bay

Vince Lombardi Cancer Clinic - Green Bay at Aurora BayCare Medical Center, Green Bay

Gundersen Lutheran Cancer Center at Gundersen Lutheran Medical Center, La Crosse

Theda Care Cancer Institute, Appleton

Regions Hospital Cancer Care Center, Saint Paul

United Hospital, Saint Paul

Fairview Ridges Hospital, Burnsville

Ridgeview Medical Center, Waconia

Virginia Piper Cancer Institute at Abbott-Northwestern Hospital, Minneapolis

CCOP - Metro-Minnesota, Saint Louis Park

Park Nicollet Health Services, Saint Louis Park

Mercy and Unity Cancer Center at Unity Hospital, Fridley

Mercy and Unity Cancer Center at Mercy Hospital, Coon Rapids

Fairview Southdale Hospital, Edina

St. Mary's - Duluth Clinic Cancer Center, Duluth

Mayo Clinic Cancer Center, Rochester

Immanuel St. Joseph's Clinic, Mankato

CentraCare Clinic - River Campus, Saint Cloud

Coborn Cancer Center, Saint Cloud

Medical X-Ray Center, PC, Sioux Falls

Rapid City Regional Hospital, Rapid City

Trinity Cancer Care Center, Minot

CCOP - Montana Cancer Consortium, Billings

Northern Rockies Radiation Oncology Center, Billings

Great Falls Clinic, Great Falls

Northwest Community Hospital, Arlington Heights

Good Shepherd Hospital, Barrington

Lutheran General Cancer Care Center, Park Ridge

Cardinal Bernardin Cancer Center at Loyola University Medical Center, Maywood

Joliet Oncology-Hematology Associates, Limited - West, Joliet

Rush-Copley Cancer Care Center, Aurora

Advocate Good Samaritan Hospital, Downers Grove

Creticos Cancer Center at Advocate Illinois Masonic Medical Center, Chicago

Valley Cancer Center, Spring Valley

InterCommunity Cancer Center of Western Illinois, Galesburg

Cancer Treatment Center at Pekin Hospital, Pekin

CCOP - Illinois Oncology Research Association, Peoria

Oncology Hematology Associates of Central Illinois, PC - Peoria, Peoria

Methodist Medical Center of Illinois, Peoria

OSF St. Francis Medical Center, Peoria

St. Joseph Medical Center, Bloomington

BroMenn Regional Medical Center, Normal

Community Cancer Center, Normal

Carle Cancer Center at Carle Foundation Hospital, Urbana

CCOP - Carle Cancer Center, Urbana

CCOP - Kansas City, Kansas City

Ellis Fischel Cancer Center at University of Missouri - Columbia, Columbia

Stormont-Vail Cancer Center, Topeka

St. Francis Comprehensive Cancer Center, Topeka

Methodist Cancer Center at Methodist Hospital - Omaha, Omaha

Saint Joseph's Mercy Cancer Center, Hot Springs

Natalie Warren Bryant Cancer Center at St. Francis Hospital, Tulsa

Doctor's Hospital of Laredo, Laredo

Hematology Oncology Associates of Eastern Idaho, Idaho Falls

St. Luke's Mountain States Tumor Institute - Boise, Boise

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

Arizona Oncology Services Foundation, Phoenix

Albuquerque Regional Medical Center at Lovelace Sandia Health System, Albuquerque

CCOP - Nevada Cancer Research Foundation, Las Vegas

Cancer Care Consultants Medical Associates at Daniel Freeman Memorial Hospital, Inglewood

Torrance Memorial Medical Center, Torrance

Ruby L. Golleher Cancer Program at Presbyterian Intercommunity Hospital, Whittier

Providence Saint Joseph Medical Center - Burbank, Burbank

Robert and Beverly Lewis Family Cancer Care Center at Pomona Valley Hospital Medical Center, Pomona

North Bay Cancer Center, Fairfield

Washington Township Hospital, Fremont

John Muir/Mt. Diablo Comprehensive Cancer Center, Walnut Creek

CCOP - Bay Area Tumor Institute, Oakland

Memorial Medical Center Cancer Services, Modesto

CCOP - Santa Rosa Memorial Hospital, Santa Rosa

Radiological Associates of Sacramento Medical Group, Incorporated, Sacramento

University of California Davis Cancer Center, Sacramento

Enloe Cancer Center at Enloe Medical Center, Chico

Leeward Radiation Oncology Center, ‘Ewa Beach

Cancer Research Center of Hawaii, Honolulu

Queen's Cancer Institute at Queen's Medical Center, Honolulu

St. Francis Medical Center, Honolulu

Tripler Army Medical Center, Honolulu

Legacy Mount Hood Medical Center, Gresham

Legacy Meridian Park Hospital, Tualatin

Legacy Good Samaritan Hospital & Medical Center Comprehensive Cancer Center, Portland

Providence Milwaukie Hospital, Milwaukie

CCOP - Columbia River Oncology Program, Portland

Providence St. Vincent Medical Center, Portland

Legacy Emanuel Hospital and Health Center & Children's Hospital, Portland

Dubs Cancer Center at Rogue Valley Medical Center, Medford

Providence Medford Medical Center, Medford

Three Rivers Community Hospital, Grants Pass

St. Francis Hospital, Federal Way

Cascade Cancer Center at Evergreen Hospital Medical Center, Kirkland

CCOP - Virginia Mason Research Center, Seattle

Group Health Central Hospital, Seattle

Madigan Army Medical Center - Tacoma, Tacoma

Southwest Washington Medical Center Cancer Center, Vancouver

Cancer Care Northwest - Spokane South, Spokane

Fairbanks Cancer Treatment Center at Fairbanks Memorial Hospital, Fairbanks

Mobile Infirmary Medical Center, Mobile

Mount Diablo Regional Cancer Center, Concord

Saint Agnes Medical Center, Fresno

USC/Norris Comprehensive Cancer Center and Hospital, Los Angeles

Providence Holy Cross Cancer Center, Mission Hills

St. Vincent's Medical Center, Bridgeport

Hospital of Saint Raphael, New Haven

Eastern Connecticut Hematology and Oncology Associates, Norwich

University of Florida Shands Cancer Center, Gainesville

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

John H. Stroger, Jr. Hospital of Cook County, Chicago

Indiana University Cancer Center, Indianapolis

Central Baptist Hospital, Lexington

Central Maine Medical Center, Lewiston

Maine Medical Center - Bramhall Campus, Portland

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

Lahey Clinic Medical Center - Burlington, Burlington

Bethke Cancer Center at Emerson Hospital, Concord

Hudner Oncology Center at Saint Anne's Hospital, Fall River

MetroWest Medical Center - Framingham Union Hospital, Framingham

Cape Cod Hospital, Hyannis

Lowell General Hospital, Lowell

Community Cancer Care at Milford Regional Medical Center, Milford

Caritas Norwood Hospital, Norwood

Baystate Regional Cancer Program at D'Amour Center for Cancer Care, Springfield

St. Joseph Mercy Cancer Center at St. Joseph Mercy Hospital, Ann Arbor

University of Michigan Comprehensive Cancer Center, Ann Arbor

Barbara Ann Karmanos Cancer Institute, Detroit

West Michigan Cancer Center, Kalamazoo

Hubert H. Humphrey Cancer Center at North Memorial Medical Center, Robbinsdale

Deaconess Billings Clinic - Downtown, Billings

Good Samaritan Cancer Center at Good Samaritan Hospital, Kearney

Dartmouth - Hitchcock Concord, Concord

Seacoast Cancer Center at Wentworth-Douglass Hospital, Dover

Norris Cotton Cancer Center at Dartmouth-Hitchcock Medical Center, Lebanon

Elliot Regional Cancer Center at Elliot Hospital, Manchester

Veterans Affairs Medical Center - East Orange, East Orange

John F. Kennedy Medical Center, Edison

Dizzy Gillespie Cancer Institute at Englewood Hospital and Medical Center, Englewood

Monmouth Medical Center, Long Branch

Fox Chase Virtua Health Cancer Program - Marlton, Marlton

Cancer Institute of New Jersey at UMDNJ - Robert Wood Johnson Medical School, New Brunswick

Saint Peter's University Hospital, New Brunswick

Newark Beth Israel Medical Center, Newark

AtlantiCare Regional Medical Center, Pomona

Booker Cancer Center at Riverview Medical Center, Red Bank

Fox Chase Cancer Center at St. Francis Medical Center, Trenton

Cancer Institute of New Jersey at Cooper - Voorhees, Voorhees Township

University of New Mexico Cancer Research and Treatment Center, Albuquerque

Roswell Park Cancer Institute, Buffalo

Tucker Center for Cancer Care at Orange Regional Medical Center, Middletown

Lineberger Comprehensive Cancer Center at University of North Carolina - Chapel Hill, Chapel Hill

Blumenthal Cancer Center at Carolinas Medical Center, Charlotte

Leo W. Jenkins Cancer Center at Pitt County Memorial Hospital, Greenville

Arthur G. James Cancer Hospital and Solove Research Institute at Ohio State University, Columbus

Riverside Methodist Hospital Cancer Care, Columbus

Providence Cancer Center at Providence Portland Medical Center, Portland

Cancer Institute at Oregon Health and Science University, Portland

Geisinger Medical Center, Danville

Paoli Memorial Hospital, Paoli

Kimmel Cancer Center at Thomas Jefferson University - Philadelphia, Philadelphia

Reading Hospital and Medical Center, Reading

Sioux Valley Hospital and University of South Dakota Medical Center, Sioux Falls

University of Texas Medical Branch, Galveston

M.D. Anderson Cancer Center at University of Texas, Houston

Joe Arrington Cancer Research and Treatment Center, Lubbock

Fletcher Allen Health Care - University Health Center Campus, Burlington

Community Cancer Center at Rutland Regional Medical Center, Rutland

Naval Medical Center - Portsmouth, Portsmouth

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

University Cancer Center at University of Washington Medical Center, Seattle

Green Bay Oncology, Limited at St. Vincent Hospital, Green Bay

St. Vincent Hospital Regional Cancer Center, Green Bay

University of Wisconsin Comprehensive Cancer Center, Madison

Cross Cancer Institute at University of Alberta, Edmonton

Lethbridge Cancer Centre, Lethbridge

British Columbia Cancer Agency - Centre for the Southern Interior, Kelowna

Nanaimo Cancer Clinic at Nanaimo Regional General Hospital, Nanaimo

Lions Gate Hospital, North Vancouver

BCCA - Fraser Valley Cancer Centre, Surrey

Prostate Centre at Vancouver General Hospital, Vancouver

British Columbia Cancer Agency - Vancouver Cancer Centre, Vancouver

Providence Health Care - Vancouver, Vancouver

British Columbia Cancer Agency - Vancouver Island Cancer Centre, Victoria

G. Steinhoff Clinical Research, Victoria

CancerCare Manitoba, Winnipeg

Moncton Hospital, Moncton

Saint John Regional Hospital, Saint John

Newfoundland Cancer Treatment and Research Foundation, St. John's

Nova Scotia Cancer Centre, Halifax

Cape Breton Cancer Centre, Sydney

Royal Victoria Hospital of Barrie, Barrie

William Osler Health Centre, Brampton

Northeastern Ontario Regional Cancer Centre, Greater Sudbury

St. Joseph's Hospital, Hamilton

Margaret and Charles Juravinski Cancer Centre, Hamilton

Cancer Centre of Southeastern Ontario at Kingston General Hospital, Kingston

Grand River Regional Cancer Centre at Grand River Hospital, Kitchner

London Regional Cancer Program at London Health Sciences Centre, London

Markham Stouffville Hospital, Markham

Trillium Health Centre - Mississauga Site, Mississauga

Southlake Regional Health Centre, Newmarket

North York General Hospital - Ontario, North York

Male Health Centre - Oakville, Oakville

R. S. McLaughlin Durham Regional Cancer Centre at Lakeridge Health Oshawa, Oshawa

Ottawa Hospital Regional Cancer Centre - General Campus, Ottawa

Peterborough Oncology Clinic, Peterborough

Algoma Regional Cancer Program at Sault Area Hospital, Sault Ste. Marie

Scarborough Hospital - General Campus, Scarborough Village

St. Catharines General Hospital at Niagara Health System, St. Catharines

Northwestern Ontario Regional Cancer Care at Thunder Bay Regional Health Sciences Centre, Thunder Bay

Toronto East General Hospital, Toronto

Toronto Sunnybrook Regional Cancer Centre at Sunnybrook Health Sciences Centre, Toronto

St. Michael's Hospital - Toronto, Toronto

Mount Sinai Hospital - Toronto, Toronto

Princess Margaret Hospital, Toronto

Male Health Centre - North York, Toronto

St. Joseph's Health Centre - Toronto, Toronto

Humber River Regional Hospital - Weston, Weston

Windsor Regional Cancer Centre at Windsor Regional Hospital, Windsor

Prince Edward Island Cancer Centre at Queen Elizabeth Hospital, Charlottetown

Centre de Sante et de Services Sociaux de Chicoutimi, Chicoutimi

CHUS-Hopital Fleurimont, Fleurimont

Doctor Leon Richard Oncology Centre, Greenfield Park

Hopital Charles Lemoyne, Greenfield Park

Centre Hospitalier Regional de Lanaudiere, Joliette

Hotel-Dieu de Levis, Lévis

Centre Hospitalier de l'Universite de Montreal, Montreal

Maisonneuve-Rosemont Hospital, Montreal

Hotel Dieu de Montreal, Montreal

Hopital Sainte Justine, Montreal

Hopital Du Sacre-Coeur de Montreal, Montreal

Centre Hospitalier Universitaire de Quebec, Québec

Hopital du Saint-Sacrement - Quebec, Québec

Centre Hospitalier Regional de Rimouski, Québec

L'Hopital Laval, Ste-Foy

Allan Blair Cancer Centre at Pasqua Hospital, Regina

Saskatoon Cancer Centre at the University of Saskatchewan, Saskatoon