| 741 | Pittsburgh, PA |
| 439 | Pittsburgh, PA 15213 |
| 144 | Pittsburgh, PA 15260 |
| 127 | Boston, MA |
| 118 | Pittsburgh, PA 15261 |
| 88 | USA |
| 88 | Pittsburgh, Pennsylvania 15213 |
| 87 | University of Pittsburgh School of Medicine |
| 86 | New York, NY |
| 85 | University of Pittsburgh Medical Center |
| 85 | Bethesda, MD |
| 83 | Pittsburgh, PA 15236 |
| 83 | Baltimore, MD |
| 77 | Philadelphia, PA |
| 76 | Washington, DC |
| 76 | Pennsylvania 15213 |
| 72 | Atlanta |
| 71 | Los Angeles, CA |
| 64 | Chicago, IL |
| 59 | Shanghai |
| 58 | San Francisco, CA |
| 56 | Ontario |
| 52 | Atlanta, GA |
| 47 | Ann Arbor, MI |
| 46 | Cardiff |
| 41 | University of Pittsburgh Cancer Institute |
| 41 | Pittsburgh, PA 15282 |
| 40 | Cambridge |
| 39 | Pittsburgh, Pennsylvania 15236 |
| 39 | Palermo |
| 39 | Houston, TX |
| 39 | Cleveland, OH |
| 39 | 15213 |
| 36 | Pennsylvania 15260 |
| 36 | Cincinnati, OH |
| 35 | Pittsburgh, PA 15232 |
| 35 | ON |
| 34 | Ann Arbor |
| 32 | Pa. |
| 31 | Toronto |
| 31 | San Diego, CA |
| 31 | New Haven, CT |
| 31 | Cleveland |
| 31 | Chapel Hill |
| 31 | Birmingham, AL |
| 29 | Bologna |
| 28 | Rochester, MN |
| 28 | Columbus, OH |
| 28 | Buenos Aires |
| 27 | Wuhan |
| 27 | Victoria |
| 27 | University of Michigan |
| 27 | University of California |
| 27 | Mayo Clinic |
| 26 | Pittsburgh, Pennsylvania 15260 |
| 26 | Pennsylvania 15261 |
| 26 | Minneapolis, MN |
| 26 | Durham, NC |
| 25 | Winston-Salem, NC |
| 25 | Taipei |
| 25 | Seattle, WA |
| 25 | PA |
| 25 | National Energy Technology Laboratory |
| 25 | Minneapolis |
| 25 | Helsinki |
| 24 | Indianapolis, IN |
| 23 | Zurich |
| 23 | Indianapolis |
| 23 | Durham |
| 23 | Dublin |
| 23 | Columbus |
| 23 | Basel |
| 22 | Vancouver |
| 22 | Portland, OR |
| 22 | Nashville, TN |
| 22 | Essen |
| 22 | Chapel Hill, NC |
| 22 | Beirut |
| 22 | Aurora, CO |
| 21 | Istanbul |
| 21 | Geneva |
| 21 | Detroit, MI |
| 21 | Bethesda |
| 20 | Southampton |
| 20 | Pittsburgh, PA 15219 |
| 20 | Leuven |
| 20 | Department of Psychiatry, University of Pittsburgh School of Medicine |
| 20 | Dallas, TX |
| 20 | Aarhus |
| 19 | Toronto, Ontario |
| 19 | Salt Lake City, UT |
| 19 | RAND Corporation |
| 19 | Pittsburgh, PA 15206 |
| 19 | Philadelphia, PA 19104 |
| 19 | Maastricht |
| 19 | Catania |
| 19 | Cape Town |
| 19 | Auckland |
| 18 | Milwaukee, WI |
| 18 | Kyoto |
| 18 | Harvard Medical School |
| 18 | Haifa |
| 18 | Bristol |
| 17 | VA Pittsburgh Healthcare System |
| 17 | Singapore |
| 17 | Pittsburgh, Pennsylvania 15261 |
| 17 | Odense |
| 17 | Madison |
| 17 | Fred Hutchinson Cancer Research Center |
| 17 | Denver |
| 17 | Berkeley, CA 94720 |
| 16 | Villejuif |
| 16 | Siena |
| 16 | Quebec |
| 16 | New Haven |
| 16 | New Delhi |
| 16 | NSW |
| 16 | Miami, FL |
| 16 | Memphis, TN |
| 16 | Buffalo, NY |
| 16 | Baltimore, MD 21218 |
| 16 | Ann Arbor, MI 48109 |
| 15 | University of Minnesota |
| 15 | University of Alabama at Birmingham |
| 15 | Tehran |
| 15 | Stanford |
| 15 | Stanford, CA |
| 15 | Providence, RI |
| 15 | Pittsburgh, PA, 15213 |
| 15 | Pennsylvania |
| 15 | Osaka |
| 15 | Northwestern University |
| 15 | Massachusetts General Hospital |
| 15 | Charlottesville, VA |
| 15 | Boston, MA 02115 |
| 14 | Stanford University |
| 14 | San Juan |
| 14 | Rockville, MD |
| 14 | Pittsburgh, PA 15224 |
| 14 | Pittsburgh, PA 15213-3890 |
| 14 | Pavia |
| 14 | Palo Alto, CA |
| 14 | Newcastle upon Tyne |
| 14 | Minneapolis, MN 55455 |
| 14 | Charlottesville |
| 14 | Baltimore, MD 21205 |
| 13 | Yale University School of Medicine |
| 13 | University of Florida |
| 13 | Seattle |
| 13 | Santa Cruz, CA 95064 |
| 13 | San Antonio, TX |
| 13 | Pittsburgh, PA 15222 |
| 13 | Pittsburgh PA |
| 13 | Nagoya |
| 13 | Morgantown, WV |
| 13 | Mexico City |
| 13 | Lund |
| 13 | Leicester |
| 13 | Jerusalem |
| 13 | Duke University Medical Center |
| 13 | Denver, CO |
| 13 | Dana-Farber Cancer Institute |
| 13 | Cincinnati |
| 13 | Bronx, NY |
| 12 | Washington University |
| 12 | Warsaw |
| 12 | University of Wisconsin |
| 12 | University of Texas Southwestern Medical Center |
| 12 | University of North Carolina |
| 12 | Santiago |
| 12 | San Antonio |
| 12 | Sacramento, CA |
| 12 | Reykjavik |
| 12 | National Cancer Institute |
| 12 | Lisbon |
| 12 | Gainesville, FL |
| 12 | Edmonton |
| 12 | Durham, North Carolina 27708 |
| 12 | Charleston |
| 12 | British Columbia |
| 11 | Yale University |
| 11 | VIC |
| 11 | University of Virginia |
| 11 | University of Pittsburgh Graduate School of Public Health |
| 11 | University of Missouri |
| 11 | University of Colorado |
| 11 | Tucson, AZ 85721 |
| 11 | Tempe, AZ 85287 |
| 11 | St. Louis |
| 11 | Sheffield |
| 11 | San José |
| 11 | Rochester |
| 11 | Richmond |
| 11 | Pittsburgh, PA 15212 |
| 11 | Pittsburgh, PA 15203 |
| 11 | Pennsylvania 15236 |
| 11 | Patras |
| 11 | Madison, WI |
| 11 | Johns Hopkins University |
| 11 | Houston, TX 77030 |
| 11 | Gainesville |
| 11 | Doha |
| 11 | Daejeon |
| 11 | Chongqing |
| 11 | Burlington, VT |
| 11 | Bethesda, MD 20892 |
| 11 | Ankara |
| 11 | 15261 |
| 10 | Wayne State University |
| 10 | Urbana, IL 61801 |
| 10 | University of Utah |
| 10 | University of Pittsburgh Pittsburgh |
| 10 | University of Pennsylvania |
| 10 | University of Miami |
| 10 | Udine |
| 10 | Stanford, California 94305 |
| 10 | St. Louis, MO |
| 10 | Shanghai 200032 |
| 10 | Pittsburgh, Pa |
| 10 | Pasadena, CA 91125 |
| 10 | Padova |
| 10 | Oviedo |
| 10 | Ohio State University |
| 10 | New South Wales |
| 10 | Naples |
| 10 | Morgantown |
| 10 | Miami |
| 10 | Memorial Sloan-Kettering Cancer Center |
| 10 | Massachusetts 02139 |
| 10 | Massachusetts 02115 |
| 10 | Kuopio |
| 10 | Irvine, CA 92697 |
| 10 | Glasgow |
| 10 | Emory University |
| 10 | Emory University School of Medicine |
| 10 | Durban |
| 10 | Duke University |
| 10 | Coventry |
| 10 | Columbus, OH 43210 |
| 10 | Cleveland Clinic |
| 10 | Charleston, SC |
| 10 | Augusta |
| 9 | West Lafayette, IN 47907 |
| 9 | Verona |
| 9 | University of New Mexico |
| 9 | University of Georgia |
| 9 | Tucson |
| 9 | Sapporo |
| 9 | Riyadh |
| 9 | Richmond, VA |
| 9 | Québec |
| 9 | Ottawa |
| 9 | Nova Scotia |
| 9 | Montreal, Quebec |
| 9 | Milwaukee |
| 9 | Memphis |
| 9 | Liverpool |
| 9 | Kowloon |
| 9 | Hong Kong |
| 9 | Harbin |
| 9 | Gwangju |
| 9 | Graz |
| 9 | Gothenburg |
| 9 | Duquesne University |
| 9 | Duke-NUS Graduate Medical School Singapore |
| 9 | Columbia |
| 9 | Children's Hospital of Pittsburgh |
| 9 | Canberra |
| 9 | Bergen |
| 9 | Belfast |
| 9 | Bangkok |
| 9 | BC |
| 9 | Aurora |
| 8 | Yokohama |
| 8 | Worcester, MA |
| 8 | Western Psychiatric Institute and Clinic |
| 8 | Weill Cornell Medical College |
| 8 | Vicenza |
| 8 | Vancouver, BC |
| 8 | Uppsala |
| 8 | Suwon |
| 8 | St Jude Children's Research Hospital |
| 8 | Sendai |
| 8 | Scotland |
| 8 | Salzburg |
| 8 | Rockville |
| 8 | Pittsburgh, PA 15236-0940 |
| 8 | Pittsburgh, PA 15235 |
| 8 | Pennsylvania 15282 |
| 8 | Pamplona |
| 8 | Pa |
| 8 | Okayama |
| 8 | Newcastle |
| 8 | New Orleans, LA |
| 8 | Nashville |
| 8 | Ministry of Health |
| 8 | Milano |
| 8 | Menlo Park, California 94025 |
| 8 | Ljubljana |
| 8 | Kaohsiung |
| 8 | Kansas City |
| 8 | Jeonju |
| 8 | Innsbruck |
| 8 | Indiana University School of Medicine |
| 8 | Hiroshima |
| 8 | Guangdong |
| 8 | Davis |
| 8 | Davis, CA 95616 |
| 8 | Columbia, SC |
| 8 | Columbia, SC 29208 |
| 8 | Cologne |
| 8 | Children's Hospital of Pittsburgh of UPMC |
| 8 | Children's Hospital of Philadelphia |
| 8 | Chiba |
| 8 | Cambridge, MA 02138 |
| 8 | Brisbane |
| 8 | Boston, MA 02114 |
| 8 | Beth Israel Deaconess Medical Center |
| 8 | Bergamo |
| 8 | Arizona State University |
| 8 | Ansan |
| 8 | American Society of Clinical Oncology |
| 7 | West Haven, CT |
| 7 | Virginia Commonwealth University |
| 7 | Virginia 23187 |
| 7 | Vancouver, British Columbia |
| 7 | University of Texas Health Science Center at San Antonio |
| 7 | University of Nebraska Medical Center |
| 7 | University of Chicago |
| 7 | University of British Columbia |
| 7 | URS Corporation |
| 7 | Tel Hashomer |
| 7 | Suwon 440-746 |
| 7 | Stony Brook, NY |
| 7 | Stony Brook University |
| 7 | Stanford, CA 94305 |
| 7 | Sandia National Laboratories |
| 7 | San Francisco, CA 94105 |
| 7 | Rue Charles Sadron |
| 7 | Queensland |
| 7 | QC |
| 7 | Poznan |
| 7 | Pittsburgh, Pennsylvania 15282 |
| 7 | Pittsburgh Pennsylvania |
| 7 | Pittsburgh PA 15213 |
| 7 | Phoenix, AZ |
| 7 | Pennsylvania 15219 |
| 7 | Parma |
| 7 | Padua |
| 7 | Oakland, CA |
| 7 | New Haven, CT 06520 |
| 7 | New England Research Institutes |
| 7 | Nanjing |
| 7 | Morgantown, WV 26506 |
| 7 | Montevideo |
| 7 | Miami, FL 33136 |
| 7 | Medical University of South Carolina |
| 7 | Magee-Womens Research Institute |
| 7 | Madison, Wisconsin 53706 |
| 7 | Madison, WI 53706 |
| 7 | Los Angeles, CA 90095 |
| 7 | Los Alamos National Laboratory |
| 7 | Lexington, KY |
| 7 | La Jolla |
| 7 | Jerusalem 91904 |
| 7 | Irvine |
| 7 | Indianapolis, IN 46202 |
| 7 | Incheon |
| 7 | IBM T. J. Watson Research Center |
| 7 | Greifswald |
| 7 | Ghent |
| 7 | Genoa |
| 7 | Florida International University |
| 7 | Edmonton, Alberta |
| 7 | Durham, NC 27708 |
| 7 | Detroit |
| 7 | Department of Medicine, University of Pittsburgh School of Medicine |
| 7 | Davis, CA |
| 7 | Charlottesville, VA 22908 |
| 7 | Center for the Neural Basis of Cognition |
| 7 | Brigham and Women's Hospital |
| 7 | Boston, Massachusetts 02114 |
| 7 | Blacksburg, VA 24061 |
| 7 | Bangalore |
| 7 | Arlington |
| 7 | Argonne, IL 60439 |
| 7 | Allegheny General Hospital |
| 7 | Allegheny Cancer Center at Allegheny General Hospital |
| 7 | Alberta |
| 6 | Zagreb |
| 6 | Winston-Salem |
| 6 | West Haven |
| 6 | Wellington |
| 6 | Washington, D.C. |
| 6 | Urbana |
| 6 | University of Vermont |
| 6 | University of Utah School of Medicine |
| 6 | University of Rochester Medical Center |
| 6 | University of Pittsburgh School of Nursing |
| 6 | University of Pittsburgh Medical School |
| 6 | University of Leicester |
| 6 | University of California San Francisco |
| 6 | Toronto, ON |
| 6 | The Ohio State University |
| 6 | The Dow Chemical Company |
| 6 | Tempe, AZ |
| 6 | Tel Aviv 69978 |
| 6 | Tampere |
| 6 | Syracuse, NY |
| 6 | Sydney, NSW |
| 6 | Stanford University School of Medicine |
| 6 | St Louis, MO |
| 6 | Silver Spring, MD |
| 6 | Sheikh Khalifa Medical City |
| 6 | Salt Lake City |
| 6 | Richmond, VA 23284 |
| 6 | Purdue University |
| 6 | Pittsburgh Pennsylvania 15213 |
| 6 | Philadelphia, Pennsylvania 19104 |
| 6 | Perth |
| 6 | Parkville |
| 6 | Oulu |
| 6 | Ottawa, Ontario |
| 6 | Otsu |
| 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 | Mount Sinai School of Medicine |
| 6 | Los Alamos, NM 87545 |
| 6 | Leeds |
| 6 | La Jolla, CA 92093 |
| 6 | Kopavogur |
| 6 | Kanagawa |
| 6 | Johannesburg |
| 6 | Jiangsu |
| 6 | Jacksonville, FL |
| 6 | Jackson, MS |
| 6 | Intel Corporation |
| 6 | Indiana University |
| 6 | Illinois 60439 |
| 6 | Honolulu, HI |
| 6 | George Washington University |
| 6 | Galveston |
| 6 | Fort Collins |
| 6 | Florence |
| 6 | Evanston |
| 6 | Eugene |
| 6 | Durham, NC 27710 |
| 6 | Dunedin |
| 6 | District of Columbia |
| 6 | Crete |
| 6 | Coventry CV4 7AL |
| 6 | Columbus, Ohio 43210 |
| 6 | Columbia, MO |
| 6 | College Station, TX 77843 |
| 6 | Chengdu |
| 6 | Centre for Addiction and Mental Health |
| 6 | Centers for Disease Control and Prevention |
| 6 | Cambridge, MA |
| 6 | Cali |
| 6 | CA |
| 6 | Boulder |
| 6 | Boston, MA 02215 |
| 6 | Berkeley, CA |
| 6 | Bari |
| 6 | Austin, TX 78712 |
| 6 | Antwerp |
| 6 | Ancona |
| 6 | Albuquerque |
| 6 | Albert Einstein College of Medicine |
| 6 | Albany, OR 97321 |
| 6 | 8010 Graz |
| 6 | 75005 Paris |
| 6 | 6020 Innsbruck |
| 6 | 15224 |
| 5 | Wuhan 430074 |
| 5 | Worcester |
| 5 | Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center |
| 5 | West Virginia University |
| 5 | Wayne State University School of Medicine |
| 5 | Washington, District of Columbia |
| 5 | Virginia 23606 |
| 5 | Virginia 23529 |
| 5 | Vanderbilt University |
| 5 | Valencia |
| 5 | University of Texas MD Anderson Cancer Center |
| 5 | University of Texas Health Science Center at Houston |
| 5 | University of Sheffield |
| 5 | University of Cincinnati |
| 5 | University of California Los Angeles |
| 5 | University of Alberta |
| 5 | University of Alabama |
| 5 | University Park, PA 16802 |
| 5 | Tucson, AZ 85719 |
| 5 | Thessaloniki |
| 5 | The University of Texas Health Science Center at Houston |
