Fathom (Dirección única, que engloba seis grandes instituciones inglesas y norteamericanas: London School of Economics, Cambridge University Press, British Library, Smithsonian Institution´s National Museum of Natural History, Columbia University (N.Y.) y la New York Public Library). 

Alabama

University of Alabama/Birmingham

University of South Alabama

Arizona

University of Arizona

Arkansas

University of Arkansas for Medical Sciences

Drew University of Medicine and Science

Loma Linda University

Stanford University

University of California/Berkeley

University of California/Irvine

University of Southern California

Colorado

AORN Library (Denver)

University of Colorado Health Sciences Center

Connecticut

University of Connecticut

Yale University, Cushing/Whitney Medical Library

Distriti de Columbia

George Washington University

Georgetown University

Florida

Nova Southeastern University Health Professions Division Library (Fort Lauderdale)

University of Florida/Gainesville

University of Miami

University of South Florida

Health Science Center Library

Cancer Center Library

Florida Mental Health Institute

Georgia

Emory University

Medical College of Georgia

Mercer University - Georgia Interactive Network for Medical Information

Illinois

Loyola University

Northwestern University

Rush University (Chicago)

Southern Illinois University

University of Illinois/Chicago

University of Illinois/Peoria

University of Illinois/Rockford

University of Illinois/Urbana

Indiana

Indiana University

Medical Library

Dentistry Library

Purdue University (Pharmacy, Nursing, Health Sciences)

Iowa

University of Iowa

Health Sciences Library

Ophthalmology Library

Kansas

University of Kansas (general site)

University of Kansas (library)

University of Kansas, Wichita

Kentucky

University of Kentucky

University of Louisville

Louisiana

Louisiana State University/New Orleans

Louisiana State University/Shreveport

Maryland

Johns Hopkins University

Uniformed Services University

University of Maryland/Baltimore

Massachusetts

Boston University

Harvard Medical Web

Countway Library of Medicine

Tufts University

University of Massachusetts

Michigan

University of Michigan

Minnesota

University of Minnesota

Mississippi

University of Mississippi

Missouri

Saint Louis University

University of Missouri

University of Missouri/Kansas City

Washington University (sede general)

Washington University (biblioteca)

Nebraska

University of Nebraska

Creighton University

Nevada

University of Nevada

New Hampshire

Dartmouth

Nueva Jersey

University of Medicine and Dentistry of New Jersey

University of New Mexico

Nueva York

Albert Einstein College of Medicine

Columbia University (general site)

Columbia University Health Sciences Library

Cornell University

New York University

Rockefeller University

State University of New York/Brooklyn

State University of New York/Buffalo

State University of New York/Stony Brook

State University of New York/Syracuse

University of Rochester

North Carolina

Bowman Gray School of Medicine, Wake Forest University

Duke University

East Carolina University

University of North Carolina

North Dakota

University of North Dakota

Ohio

Northeastern Ohio Universities

Ohio State University

University of Cincinnati

Wright State University

Oklahoma

Oklahoma State University College of Osteopathic Medicine

University of Oklahoma

University of Oklahoma, Tulsa Campus

Oregon

Oregon Health Sciences University

Pennsylvania

Allegheny University, Philadelphia

Pennsylvania State University (Hershey Medical Center)

Thomas Jefferson University (general site)

Thomas Jefferson University (biblioteca)

University of Pennsylvania

University of Pittsburgh

South Carolina

Medical University of South Carolina

Tennessee

East Tennessee State University

University of Tennessee, Memphis

Vanderbilt University (general site)

Vanderbilt University (biblioteca)

Tejas

University of North Texas-Fort Worth Health Sciences Center

University of Texas Health Science Center at San Antonio - Web| Gopher

University of Texas M.D.Anderson Cancer Center, Research Medical Library

University of Texas Medical Branch/Galveston

University of Texas/Southwestern

Utah

University of Utah

Vermont

University of Vermont

Virginia

University of Virginia

Virginia Commonwealth

Washington

University of Washington (general site)

University of Washington Health Sciences Libraries and Information Center

West Virginia

Marshall University

 Wisconsin

Medical College of Wisconsin

University of Wisconsin

Wyoming

University of Wyoming Health Sciences Information Network