| 800 | Pittsburgh, PA |
| 455 | Pittsburgh, PA 15213 |
| 151 | Pittsburgh, PA 15260 |
| 137 | Boston, MA |
| 123 | Pittsburgh, PA 15261 |
| 92 | Pittsburgh, Pennsylvania 15213 |
| 90 | Bethesda, MD |
| 88 | New York, NY |
| 86 | Baltimore, MD |
| 85 | University of Pittsburgh School of Medicine |
| 83 | Pittsburgh, PA 15236 |
| 82 | Philadelphia, PA |
| 79 | Washington, DC |
| 78 | University of Pittsburgh Medical Center |
| 73 | Los Angeles, CA |
| 67 | Chicago, IL |
| 65 | San Francisco, CA |
| 54 | Atlanta, GA |
| 51 | Ann Arbor, MI |
| 43 | Cleveland, OH |
| 42 | University of Pittsburgh Cancer Institute |
| 41 | Pittsburgh, PA 15282 |
| 41 | Houston, TX |
| 39 | Pittsburgh, Pennsylvania 15236 |
| 38 | Cincinnati, OH |
| 35 | Pittsburgh, PA 15232 |
| 33 | San Diego, CA |
| 33 | New Haven, CT |
| 32 | University of California |
| 32 | Birmingham, AL |
| 31 | Columbus, OH |
| 29 | Minneapolis, MN |
| 29 | Durham, NC |
| 28 | University of Michigan |
| 28 | Shanghai |
| 28 | Rochester, MN |
| 28 | National Energy Technology Laboratory |
| 27 | Winston-Salem, NC |
| 27 | Seattle, WA |
| 27 | Pittsburgh, Pennsylvania 15260 |
| 27 | Mayo Clinic |
| 25 | Portland, OR |
| 25 | Indianapolis, IN |
| 25 | Cardiff |
| 24 | Chapel Hill, NC |
| 24 | Aurora, CO |
| 23 | Pittsburgh, PA 15219 |
| 23 | Nashville, TN |
| 23 | Dallas, TX |
| 21 | PA |
| 21 | Detroit, MI |
| 20 | Toronto, Ontario |
| 20 | Pittsburgh, PA 15206 |
| 20 | Miami, FL |
| 20 | Department of Psychiatry, University of Pittsburgh School of Medicine |
| 19 | Salt Lake City, UT |
| 19 | RAND Corporation |
| 19 | Philadelphia, PA 19104 |
| 19 | Milwaukee, WI |
| 19 | Memphis, TN |
| 19 | Berkeley, CA 94720 |
| 18 | VA Pittsburgh Healthcare System |
| 18 | Fred Hutchinson Cancer Research Center |
| 18 | Charlottesville, VA |
| 18 | Baltimore, MD 21218 |
| 18 | Ann Arbor |
| 17 | University of Alabama at Birmingham |
| 17 | Pittsburgh, Pennsylvania 15261 |
| 17 | Chapel Hill |
| 17 | Buffalo, NY |
| 16 | University of Minnesota |
| 16 | Stanford, CA |
| 16 | Rockville, MD |
| 16 | Pittsburgh, PA, 15213 |
| 16 | Palo Alto, CA |
| 16 | Massachusetts General Hospital |
| 16 | Harvard Medical School |
| 16 | Ann Arbor, MI 48109 |
| 15 | Providence, RI |
| 15 | Palermo |
| 15 | Northwestern University |
| 15 | Minneapolis |
| 15 | Boston, MA 02115 |
| 15 | Bologna |
| 14 | University of North Carolina |
| 14 | Taipei |
| 14 | Stanford University |
| 14 | Pittsburgh, PA 15224 |
| 14 | Pittsburgh, PA 15213-3890 |
| 14 | Minneapolis, MN 55455 |
| 14 | Gainesville, FL |
| 14 | Bronx, NY |
| 14 | Beirut |
| 14 | Baltimore, MD 21205 |
| 14 | Atlanta |
| 13 | Yale University |
| 13 | Yale University School of Medicine |
| 13 | University of Florida |
| 13 | Santa Cruz, CA 95064 |
| 13 | San Antonio, TX |
| 13 | Pittsburgh, PA 15222 |
| 13 | Morgantown, WV |
| 13 | Madison, WI |
| 13 | Duke University Medical Center |
| 13 | Denver, CO |
| 13 | Dana-Farber Cancer Institute |
| 13 | Columbus |
| 12 | Washington University |
| 12 | University of Wisconsin |
| 12 | University of Texas Southwestern Medical Center |
| 12 | University of Pennsylvania |
| 12 | St. Louis, MO |
| 12 | Southampton |
| 12 | Sacramento, CA |
| 12 | Pittsburgh, PA 15212 |
| 12 | Pavia |
| 12 | National Cancer Institute |
| 12 | Madison |
| 12 | Helsinki |
| 12 | Durham, North Carolina 27708 |
| 12 | Cleveland |
| 12 | Aarhus |
| 11 | Wuhan |
| 11 | Weill Cornell Medical College |
| 11 | Wayne State University |
| 11 | University of Virginia |
| 11 | University of Colorado |
| 11 | Tucson, AZ 85721 |
| 11 | Tempe, AZ 85287 |
| 11 | Richmond, VA |
| 11 | Pittsburgh, Pennsylvania 15282 |
| 11 | Pittsburgh, PA 15203 |
| 11 | Montreal, Quebec |
| 11 | Houston, TX 77030 |
| 11 | Denver |
| 11 | Columbus, OH 43210 |
| 11 | Charleston, SC |
| 11 | Cape Town |
| 11 | Burlington, VT |
| 11 | Bethesda, MD 20892 |
| 11 | Basel |
| 10 | Urbana, IL 61801 |
| 10 | University of Utah |
| 10 | University of Missouri |
| 10 | University of Miami |
| 10 | Toronto |
| 10 | Stanford, California 94305 |
| 10 | Singapore |
| 10 | Pittsburgh, Pa |
| 10 | Pasadena, CA 91125 |
| 10 | Ohio State University |
| 10 | Memorial Sloan-Kettering Cancer Center |
| 10 | Irvine, CA 92697 |
| 10 | Emory University |
| 10 | Emory University School of Medicine |
| 10 | Cleveland Clinic |
| 9 | Worcester, MA |
| 9 | Western Psychiatric Institute and Clinic |
| 9 | West Lafayette, IN 47907 |
| 9 | Vancouver |
| 9 | University of Pittsburgh Graduate School of Public Health |
| 9 | University of New Mexico |
| 9 | University of Leicester |
| 9 | University of Georgia |
| 9 | Odense |
| 9 | New Orleans, LA |
| 9 | Maastricht |
| 9 | Leuven |
| 9 | Essen |
| 9 | Duquesne University |
| 9 | Duke University |
| 9 | Dublin |
| 9 | Children's Hospital of Pittsburgh |
| 9 | Argonne, IL 60439 |
| 8 | Vancouver, BC |
| 8 | University of Pittsburgh School of Nursing |
| 8 | University of Nebraska Medical Center |
| 8 | University of British Columbia |
| 8 | Stony Brook, NY |
| 8 | Stanford University School of Medicine |
| 8 | St Louis, MO |
| 8 | St Jude Children's Research Hospital |
| 8 | Siena |
| 8 | Sandia National Laboratories |
| 8 | San Antonio |
| 8 | Pittsburgh, PA 15236-0940 |
| 8 | Pittsburgh, PA 15235 |
| 8 | Phoenix, AZ |
| 8 | New Haven, CT 06520 |
| 8 | Mount Sinai School of Medicine |
| 8 | Menlo Park, California 94025 |
| 8 | Madison, WI 53706 |
| 8 | Leicester |
| 8 | Johns Hopkins University |
| 8 | Indianapolis |
| 8 | Indiana University School of Medicine |
| 8 | Honolulu, HI |
| 8 | George Washington University |
| 8 | Geneva |
| 8 | Duke-NUS Graduate Medical School Singapore |
| 8 | Department of Medicine, University of Pittsburgh School of Medicine |
| 8 | Davis, CA 95616 |
| 8 | Columbia, SC |
| 8 | Columbia, SC 29208 |
| 8 | Children's Hospital of Philadelphia |
| 8 | Charlottesville |
| 8 | Centre for Addiction and Mental Health |
| 8 | Center for the Neural Basis of Cognition |
| 8 | Catania |
| 8 | Cambridge, MA 02138 |
| 8 | Buenos Aires |
| 8 | Boston, MA 02114 |
| 8 | Beth Israel Deaconess Medical Center |
| 8 | Arizona State University |
| 8 | American Society of Clinical Oncology |
| 7 | Zurich |
| 7 | West Haven, CT |
| 7 | Washington, District of Columbia |
| 7 | Vancouver, British Columbia |
| 7 | University of Texas Health Science Center at San Antonio |
| 7 | University of Chicago |
| 7 | University of California San Francisco |
| 7 | URS Corporation |
| 7 | Toronto, ON |
| 7 | The Ohio State University |
| 7 | The Dow Chemical Company |
| 7 | Tempe, AZ |
| 7 | Tehran |
| 7 | Syracuse, NY |
| 7 | Sydney, NSW |
| 7 | Stony Brook University |
| 7 | Stanford, CA 94305 |
| 7 | Santiago |
| 7 | San Juan |
| 7 | San Francisco, CA 94105 |
| 7 | Patras |
| 7 | Oakland, CA |
| 7 | New England Research Institutes |
| 7 | Morgantown, WV 26506 |
| 7 | Miami, FL 33136 |
| 7 | Medical University of South Carolina |
| 7 | Magee-Womens Research Institute |
| 7 | Madison, Wisconsin 53706 |
| 7 | Los Angeles, CA 90095 |
| 7 | Los Alamos National Laboratory |
| 7 | Lexington, KY |
| 7 | Indianapolis, IN 46202 |
| 7 | IBM T. J. Watson Research Center |
| 7 | Halifax, Nova Scotia |
| 7 | Haifa |
| 7 | Florida International University |
| 7 | Edmonton, Alberta |
| 7 | Durham, NC 27708 |
| 7 | Davis, CA |
| 7 | Charlottesville, VA 22908 |
| 7 | Cambridge |
| 7 | Brigham and Women's Hospital |
| 7 | Boston, Massachusetts 02114 |
| 7 | Boston, MA 02215 |
| 7 | Blacksburg, VA 24061 |
| 7 | Bethesda |
| 7 | Berkeley, CA |
| 7 | Allegheny Cancer Center at Allegheny General Hospital |
| 7 | Albert Einstein College of Medicine |
| 6 | Winston-Salem |
| 6 | Washington, D.C. |
| 6 | Virginia Commonwealth University |
| 6 | Villejuif |
| 6 | Victoria |
| 6 | University of Vermont |
| 6 | University of Utah School of Medicine |
| 6 | University of Texas Health Science Center at Houston |
| 6 | University of Sheffield |
| 6 | University of Rochester Medical Center |
| 6 | University of Pittsburgh Medical School |
| 6 | The George Washington University Biostatistics Center |
| 6 | Temple University |
| 6 | Suwon 440-746 |
| 6 | Silver Spring, MD |
| 6 | Sheikh Khalifa Medical City |
| 6 | Rochester, NY |
| 6 | Richmond |
| 6 | Richmond, VA 23284 |
| 6 | Purdue University |
| 6 | Philadelphia, Pennsylvania 19104 |
| 6 | Ottawa, Ontario |
| 6 | Oregon Research Institute |
| 6 | Northwestern University Feinberg School of Medicine |
| 6 | New York University |
| 6 | New Haven, CT 06511 |
| 6 | National Surgical Adjuvant Breast and Bowel Project |
| 6 | National Institutes of Health |
| 6 | National Institute of Mental Health |
| 6 | Milwaukee |
| 6 | Los Alamos, NM 87545 |
| 6 | La Jolla, CA 92093 |
| 6 | Jerusalem 91904 |
| 6 | Jacksonville, FL |
| 6 | Jackson, MS |
| 6 | Intel Corporation |
| 6 | Indiana University |
| 6 | Incheon |
| 6 | Durham |
| 6 | Durham, NC 27710 |
| 6 | Durban |
| 6 | Coventry |
| 6 | Columbus, Ohio 43210 |
| 6 | Columbia, MO |
| 6 | Columbia University Medical Center |
| 6 | College Station, TX 77843 |
| 6 | Charleston |
| 6 | Centers for Disease Control and Prevention |
| 6 | Case Western Reserve University |
| 6 | Cambridge, MA |
| 6 | CA |
| 6 | Brisbane |
| 6 | Austin, TX 78712 |
| 6 | Atlanta, GA 30322 |
| 6 | Allegheny General Hospital |
| 6 | Albuquerque, NM |
| 6 | Albany, OR 97321 |
| 5 | White Plains, NY |
| 5 | Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center |
| 5 | West Haverstraw, NY |
| 5 | Wayne State University School of Medicine |
| 5 | Vicenza |
| 5 | Vanderbilt University |
| 5 | University of Texas MD Anderson Cancer Center |
| 5 | University of Texas Health Science Center |
| 5 | University of Oregon |
| 5 | University of Massachusetts Medical School |
| 5 | University of Cincinnati |
| 5 | University of Alberta |
| 5 | University of Alabama |
| 5 | University Park, PA 16802 |
| 5 | Tucson, AZ |
| 5 | Tucson, AZ 85719 |
| 5 | Sydney, New South Wales |
| 5 | Stanford, California 94305-2115 |
| 5 | South Park, Pennsylvania 15129 |
| 5 | Slidell, LA 70458 |
| 5 | Seattle |
| 5 | Salt Lake City |
| 5 | Rush University Medical Center |
| 5 | Rochester, NY 14642 |
| 5 | Primary Physicians Research |
| 5 | Pittsburgh. PA 15213 |
| 5 | Pittsburgh, Pennsylvania, 15213 |
| 5 | Pittsburgh, Pennsylvania 15232 |
| 5 | Pittsburgh, PA, 15261 |
| 5 | Pittsburgh, PA 15217 |
| 5 | Pittsburgh, PA 15213-1863 |
| 5 | Pittsburgh, PA 15201 |
| 5 | Pittsburgh Pennsylvania 15213 |
| 5 | Pasadena, CA |
| 5 | Parkville |
| 5 | PA 15213 |
| 5 | Osaka |
| 5 | Oregon State University |
| 5 | Oregon Social Learning Center |
| 5 | Ontario |
| 5 | Novartis Pharmaceuticals Corporation |
| 5 | Newark, DE 19716 |
| 5 | New York, NY 10027 |
| 5 | National Institute of Standards and Technology |
| 5 | National Institute of Diabetes and Digestive and Kidney Diseases |
| 5 | Morgantown |
| 5 | Miami, FL 33199 |
| 5 | Mexico City |
| 5 | Melbourne, Victoria |
| 5 | Massachusetts General Hospital Cancer Center |
| 5 | Lisbon |
| 5 | Lebanon, NH |
| 5 | Lawrence Livermore National Laboratory |
| 5 | La Jolla, CA |
| 5 | Kansas City, MO |
| 5 | Honolulu, HI 96822 |
| 5 | Hong Kong |
| 5 | Hershey, PA |
| 5 | Harvard School of Public Health |
| 5 | George Washington University Biostatistics Center |
| 5 | Gainesville |
| 5 | Florida State University |
| 5 | Farmington, CT |
| 5 | Evanston, Illinois 60208 |
| 5 | Evanston, IL 60208 |
| 5 | Eunice Kennedy Shriver National Institute of Child Health and Human Development |
| 5 | Durham, North Carolina 27708-0287 |
| 5 | Drexel University College of Medicine |
| 5 | Department of Pediatrics, University of Pittsburgh School of Medicine |
| 5 | Cincinnati Children's Hospital Medical Center |
| 5 | Children's National Medical Center |
| 5 | Children's Hospital of Pittsburgh of UPMC |
| 5 | Chicago, IL 60637 |
| 5 | Canberra |
| 5 | Cambridge, MA 02139 |
| 5 | Buffalo, NY 14260 |
| 5 | Boulder, CO |
| 5 | Blacksburg, VA |
| 5 | Binghamton, NY 13902 |
| 5 | Bethlehem, PA 18015 |
| 5 | Belfast |
| 5 | Bangkok |
| 5 | Austin, TX |
| 5 | Ansys Inc. |
| 5 | Ann Arbor, Michigan 48109 |
| 5 | Amherst, MA 01003 |
| 5 | Alfried Krupp Krankenhaus |
| 5 | Albuquerque, New Mexico 87185 |
| 5 | 75005 Paris |
| 4 | Wuhan 430074 |
| 4 | Wright-Patterson Air Force Base, OH 45433 |
| 4 | Western Psychiatric Institute and Clinic, University of Pittsburgh School of Medicine |
| 4 | West Virginia University |
| 4 | West Penn Allegheny Health System |
| 4 | West Haven |
| 4 | Washington, DC 20375 |
| 4 | Warsaw |
| 4 | Wallstadter Str. 59 |
| 4 | Wake Forest University |
| 4 | Wake Forest University Health Sciences |
| 4 | Veterans Affairs Medical Center |
| 4 | Vanderbilt University Medical Center |
| 4 | VA Medical Center |
| 4 | VA Connecticut Healthcare System |
| 4 | University of Vermont College of Medicine |
| 4 | University of Texas at San Antonio |
| 4 | University of Texas Medical Branch |
| 4 | University of Tennessee |
| 4 | University of Rochester School of Medicine and Dentistry |
| 4 | University of Pennsylvania School of Medicine |
| 4 | University of Miami Miller School of Medicine |
| 4 | University of Maryland School of Medicine |
| 4 | University of Hawaii |
| 4 | University of Colorado at Boulder |
| 4 | University of Colorado Denver |
| 4 | University of California Los Angeles |
| 4 | University of Arkansas for Medical Sciences |
| 4 | Uniformed Services University of the Health Sciences |
| 4 | URS |
| 4 | Tucson |
| 4 | Tucson, AZ 85724 |
| 4 | Toledo, OH |
| 4 | The University of Texas MD Anderson Cancer Center |
| 4 | The University of Texas Health Science Center at Houston |
| 4 | The Johns Hopkins University School of Medicine |
| 4 | Taipei 106 |
| 4 | Suwon |
| 4 | Stanford |
| 4 | St. Louis, MO 63130 |
| 4 | St. Louis, MO 63110 |
| 4 | Space Telescope Science Institute |
| 4 | South Park, PA 15129 |
| 4 | Sheffield |
| 4 | Seattle, WA 98195 |
| 4 | Seattle, WA 98109 |
| 4 | Sapporo |
| 4 | Santiago 22 |
| 4 | Sanofi Pasteur |
| 4 | San Diego, La Jolla |
| 4 | San Bernardino, CA 92408 |
| 4 | San Antonio, TX 78229 |
| 4 | Salt Lake City, UT 84112 |
| 4 | Sacramento, CA 95817 |
| 4 | Rochester, MN 55905 |
| 4 | Rehovot 76100 |
| 4 | Portland, OR 97239 |
| 4 | Pittsburgh, Pennsylvania 15224 |
| 4 | Pittsburgh, Pennsylvania 15213-3890 |
| 4 | Pittsburgh, PA. |
| 4 | Pittsburgh, PA 15240 |
| 4 | Pittsburgh Pennsylvania |
| 4 | Pittsburgh PA |
| 4 | Pittsburg, PA |
| 4 | Phitsanulok 65000 |
| 4 | Philadelphia Veterans Affairs Medical Center |
| 4 | Perelman School of Medicine at the University of Pennsylvania |
| 4 | Padova |
| 4 | Ottawa |
| 4 | Orlando, FL |
| 4 | Omaha, NE |
| 4 | Oklahoma City, OK |
| 4 | Oak Ridge National Laboratory |
| 4 | OH 45433 |
| 4 | Novartis Pharma AG |
| 4 | Newcastle |
| 4 | New York, NY 10032 |
| 4 | New Haven, CT 06510 |
| 4 | National Surgical Adjuvant Breast and Bowel Project (NSABP) |
| 4 | National Institute for Occupational Safety and Health |
| 4 | Nashville, TN 37203 |
| 4 | NASA Glenn Research Center |
| 4 | Morgantown, West Virginia 26506 |
| 4 | Minneapolis, Minnesota 55455 |
| 4 | Michael E. DeBakey VA Medical Center |
| 4 | Menlo Park, CA |
| 4 | Memphis |
| 4 | Memorial Sloan Kettering Cancer Center |
| 4 | Medical College of Wisconsin |
| 4 | Mayo Clinic College of Medicine |
