S0521, Combination Chemotherapy With or Without Gemtuzumab Followed By Tretinoin, Mercaptopurine, and Methotrexate or Observation in Treating Patients With Acute Promyelocytic Leukemia

NYU Cancer Institute at New York University Medical Center, New York

Our Lady of Mercy Medical Center Comprehensive Cancer Center, The Bronx

CCOP - North Shore University Hospital, Manhasset

Don Monti Comprehensive Cancer Center at North Shore University Hospital, Manhasset

Long Island Jewish Medical Center, New Hyde Park

Monter Cancer Center of the North Shore-LIJ Health System, Lake Success

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

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

Geisinger Medical Group - Scenery Park, State College

Geisinger Hazleton Cancer Center, Hazleton

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

CCOP - Christiana Care Health Services, Newark

Tunnell Cancer Center at Beebe Medical Center, Lewes

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

Greenebaum Cancer Center at University of Maryland Medical Center, Baltimore

Union Hospital Cancer Program at Union Hospital, Elkton

Mary Babb Randolph Cancer Center at West Virginia University Hospitals, Morgantown

Wayne Memorial Hospital, Incorporated, Goldsboro

Kinston Medical Specialists, Kinston

Hollings Cancer Center at Medical University of South Carolina, Charleston

Cleveland Clinic Taussig Cancer Center, Cleveland

Barberton Citizens Hospital, Barberton

St. Rita's Medical Center, Lima

Fort Wayne Medical Oncology and Hematology, Fort Wayne

Mercy Regional Cancer Center at Mercy Hospital, Port Huron

St. John Macomb Hospital, Warren

CCOP - Michigan Cancer Research Consortium, Ann Arbor

St. Mary Mercy Hospital, Livonia

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

Hurley Medical Center, Flint

Seton Cancer Institute at Saint Mary's - Saginaw, Saginaw

Borgess Medical Center, Kalamazoo

Bronson Methodist Hospital, Kalamazoo

Foote Memorial Hospital, Jackson

McFarland Clinic, PC, Ames

Mercy Capitol Hospital, Des Moines

CCOP - Iowa Oncology Research Association, Des Moines

John Stoddard Cancer Center at Iowa Methodist Medical Center, Des Moines

Medical Oncology and Hematology Associates at John Stoddard Cancer Center, Des Moines

Medical Oncology and Hematology Associates at Mercy Cancer Center, Des Moines

Mercy Cancer Center at Mercy Medical Center - Des Moines, Des Moines

John Stoddard Cancer Center at Iowa Lutheran Hospital, Des Moines

Medical Oncology and Hematology Associates - West Des Moines, Clive

Siouxland Hematology-Oncology Associates, LLP, Sioux City

Mercy Medical Center - Sioux City, Sioux City

St. Luke's Regional Medical Center, Sioux City

Froedtert Hospital and Medical College of Wisconsin, Milwaukee

Medical College of Wisconsin Cancer Center, Milwaukee

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

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

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

Regions Hospital Cancer Care Center, Saint Paul

United Hospital, Saint Paul

HealthEast Cancer Care at St. John's Hospital, Maplewood

Minnesota Oncology Hematology, PA - Maplewood, Maplewood

Minnesota Oncology Hematology, PA - Woodbury, Woodbury

Fairview Ridges Hospital, Burnsville

Hutchinson Area Health Care, Hutchinson

St. Francis Cancer Center at St. Francis Medical Center, Shakopee

Ridgeview Medical Center, Waconia

Virginia Piper Cancer Institute at Abbott - Northwestern Hospital, Minneapolis

Hennepin County Medical Center - Minneapolis, Minneapolis

CCOP - Metro-Minnesota, Saint Louis Park

Park Nicollet Cancer Center, 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

Mayo Clinic Cancer Center, Rochester

Avera Cancer Institute, Sioux Falls

Medical X-Ray Center, PC, Sioux Falls

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

Kellogg Cancer Care Center, Highland Park

North Shore Oncology and Hematology Associates, Limited - Libertyville, Libertyville

Hematology Oncology Associates - Skokie, Skokie

Cardinal Bernardin Cancer Center at Loyola University Medical Center, Maywood

Hematology Oncology Associates of Illinois - Berwyn, Berwyn

Midwest Center for Hematology/Oncology, Joliet

La Grange Oncology Associates - Geneva, Naperville

Hematology and Oncology Associates, Chicago

Cancer Care and Hematology Specialists of Chicagoland - Niles, Niles

Community Hospital of Ottawa, Ottawa

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

Illinois CancerCare - Peru, Peru

Illinois Valley Community Hospital, Peru

Illinois CancerCare - Princeton, Princeton

Perry Memorial Hospital, Princeton

Illinois CancerCare - Spring Valley, Spring Valley

Galesburg Clinic, PC, Galesburg

Illinois CancerCare - Galesburg, Galesburg

Illinois CancerCare - Kewanee Clinic, Kewanee

Illinois CancerCare - Macomb, Macomb

McDonough District Hospital, Macomb

Illinois CancerCare - Monmouth, Monmouth

Graham Hospital, Canton

Illinois CancerCare - Canton, Canton

Eureka Community Hospital, Eureka

Illinois CancerCare - Eureka, Eureka

Cancer Treatment Center at Pekin Hospital, Pekin

Illinois CancerCare - Pekin, Pekin

Proctor Hospital, Peoria

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

Illinois CancerCare - Bloomington, Bloomington

St. Joseph Medical Center, Bloomington

BroMenn Regional Medical Center, Normal

Community Cancer Center, Normal

Illinois CancerCare - Community Cancer Center, Normal

Illinois CancerCare - Carthage, Carthage

Memorial Hospital, Carthage

Decatur Memorial Hospital Cancer Care Institute, Decatur

Illinois CancerCare - Havana, Havana

Mason District Hospital, Havana

Saint Louis University Cancer Center, St Louis

Siteman Cancer Center at Barnes-Jewish Hospital - Saint Louis, St Louis

Lawrence Memorial Hospital, Lawrence

Cancer Center of Kansas - Fort Scott, Fort Scott

Cancer Center of Kansas, PA - Chanute, Chanute

Cancer Center of Kansas, PA - El Dorado, El Dorado

Cancer Center of Kansas, PA - Kingman, Kingman

Cancer Center of Kansas, PA - Newton, Newton

Cancer Center of Kansas, PA - Pratt, Pratt

Cancer Center of Kansas, PA - Wellington, Wellington

Cancer Center of Kansas, PA - Winfield, Winfield

Associates in Womens Health, PA - North Review, Wichita

Cancer Center of Kansas, PA - Medical Arts Tower, Wichita

Cancer Center of Kansas, PA - Wichita, Wichita

CCOP - Wichita, Wichita

Via Christi Cancer Center at Via Christi Regional Medical Center, Wichita

Wesley Medical Center, Wichita

Cancer Center of Kansas-Independence, Independence

Cancer Center of Kansas, PA - Parsons, Parsons

Cancer Center of Kansas, PA - Salina, Salina

Tammy Walker Cancer Center at Salina Regional Health Center, Salina

Cancer Center of Kansas, PA - Dodge City, Dodge City

Cancer Center of Kansas, PA - Liberal, Liberal

Methodist Estabrook Cancer Center, Omaha

Rocky Mountain Oncology, Casper

Welch Cancer Center at Sheridan Memorial Hospital, Sheridan

Sutter Cancer Center at Roseville Medical Center, Roseville

Sutter Cancer Center, Sacramento

Harborview Medical Center, Seattle

Minor and James Medical, PLLC, Seattle

Fred Hutchinson Cancer Research Center, Seattle

Group Health Central Hospital, Seattle

Polyclinic First Hill, Seattle

University Cancer Center at University of Washington Medical Center, Seattle

St. Joseph Cancer Center, Bellingham

Skagit Valley Hospital Cancer Care Center, Mount Vernon

Olympic Hematology and Oncology, Bremerton

Harrison Poulsbo Hematology and Onocology, Poulsbo

Cancer Care Northwest - Spokane South, Spokane

Evergreen Hematology and Oncology, PS, Spokane

Columbia Basin Hematology, Kennewick

Mayo Clinic Scottsdale, Scottsdale

Stanford Cancer Center, Stanford

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

University of Chicago Cancer Research Center, Chicago

Regional Cancer Center at Memorial Medical Center, Springfield

Tulane Cancer Center Office of Clinical Research, Alexandria

CancerCare of Maine at Eastern Maine Medical Center, Bangor

Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore

Massachusetts General Hospital, Boston

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

Beth Israel Deaconess Medical Center, Boston

Saint Joseph Mercy Cancer Center, Ann Arbor

University of Michigan Comprehensive Cancer Center, Ann Arbor

Oakwood Cancer Center at Oakwood Hospital and Medical Center, Dearborn

Barbara Ann Karmanos Cancer Institute, Detroit

West Michigan Cancer Center, Kalamazoo

Sparrow Regional Cancer Center, Lansing

St. Joseph Mercy Oakland, Pontiac

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

Billings Clinic - Downtown, Billings

Montana Cancer Specialists at Montana Cancer Center, Missoula

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

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

Roswell Park Cancer Institute, Buffalo

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

Blumenthal Cancer Center at Carolinas Medical Center, Charlotte

Wake Forest University Comprehensive Cancer Center, Winston-Salem

Summa Center for Cancer Care at Akron City Hospital, Akron

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

Geisinger Cancer Institute at Geisinger Health, Danville

Abramson Cancer Center of the University of Pennsylvania, Philadelphia

Kimmel Cancer Center at Thomas Jefferson University - Philadelphia, Philadelphia

Sanford Cancer Center at Sanford USD Medical Center, Sioux Falls

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

Wenatchee Valley Medical Center, Wenatchee

Green Bay Oncology, Limited at St. Vincent Hospital Regional Cancer Center, Green Bay

St. Vincent Hospital Regional Cancer Center, Green Bay

Holy Family Memorial Medical Center Cancer Care Center, Manitowoc