1 Harvard Harvard University, USA

2 Stanford University, USA Stanford University, USA

University of Cambridge, UK University of Cambridge, UK

4 University of California, Berkeley University of California, Berkeley, USA

5 Massachusetts Institute of Technology Massachusetts Institute of Technology

California Institute of Technology California Institute of Technology, USA

7 Princeton University Princeton University 8 Oxford University UK Oxford University UK

9 Columbia University Columbia University 10 University of Chicago University of Chicago, USA

Yale University, USA Yale University, USA

12 Cornell University Cornell University, USA

13 University of California, San Diego, USA

14 University of Tokyo, Japan

15 University of Pennsylvania, USA

16 UCLA, USA

17 University of California, San Francisco

18 University of Wisconsin-Madison, USA

19 University of Michigan, ann arbor, USA

20 University of Washington, Seattle University of Washington (Seattle)

2 1 Kyoto University, Japan Kyoto University, Japan

22 Johns Hopkins University, USA Johns Hopkins University, USA

23 London, Imperial College London, UK, London, Imperial College London 24 University of Toronto, Canada, Toronto College, Canada

25 University College London, UK

26 University of Illinois at Urbana-Champaign, University of Illinois at California, USA

Swiss Federal Institute of Technology-Swiss Federal Institute of Technology Zurich

28 Washington University-St. Louis Washington University (St. Louis)

29 Rockefeller University, USA

30 Northwestern University 3 1 Duke University Duke University USA

32 University of new york, USA

33 University of Minnesota Twin Cities University of Minnesota USA

University of Colorado at Boulder, USA University of Colorado, USA

University of California, Santa Barbara, USA University of California, Santa Barbara, USA

36 University of British Columbia, Canada

University of Texas Southwest Medical Center, University of Texas Southwest Medical Center, USA

Vanderbilt University, USA

39 utrecht university, Netherlands

40 University of Texas at Austin, USA

4 1 University of Paris 06 University of Paris VI France

University of California, Davis, USA University of California, Davis, USA

43 Pennsylvania State University Park University Pennsylvania State University

Rutgers State University-New Brunswick, USA

Technical university of munich, Germany, technical university of munich, Germany

Karolinska institutet, Stockholm, Sweden.

47 University of Edinburgh University of Edinburgh UK 48 University of Paris 1 1 Paris1/University.

University of Pittsburgh University of Pittsburgh, USA

University of Southern California, USA

5 1 University of Rochester, USA

52 Australian National University Australia Australian National University

Osaka University, Japan Osaka University, Japan

54 University of California at Irvine, USA University of California at Irvine, USA

55 University of North Carolina at Chapel Hill University of North Carolina, USA

56 University of Maryland College Park University of Maryland, USA

57 University of Zurich, Switzerland

58 University of Copenhagen, Denmark

59 University of Bristol, UK

McGill University, Canada, Canada

Carnegie Mellon University, USA

Leiden University, Netherlands

63 University of Heidelberg, Germany Vienna University of Heidelberg, Germany

64 Case Western Reserve University Case Western Reserve University

Moscow State University, Russia

66 University of Florida University of Florida, USA

67 University of Oslo, Norway 68 Tohoku University of Japan Tohoku University of Norway

University of Sheffield, UK

Purdue University-Purdue University in West lafayette, UK.

7 1 University of Helsinki University of Finland

72 Ohio State University at Columbus, USA

Uppsala University, Sweden

Rice University, USA

75 University of Arizona USA University of Arizona USA

76 King's College, University of London 77 University of Manchester, United Kingdom

78 University of G? ttingen, Germany Gutenberg University, Germany

79 Michigan State University, USA

University of Nottingham, UK

Brown University of America Brown University of America

82 University of Melbourne Australia University of Melbourne Australia

83 University of Strasbourg 1 University of Strasbourg I, France

84 Paris Teachers College, France, Paris Teachers College, France

85 Boston University, Boston University, USA

University of Vienna, Austria

McMaster University Canada McMaster University Canada

88 University of Freiburg, Germany

89 Hebrew University of Jerusalem, Israel Hebrew University of Jerusalem, Israel

University of basel, Switzerland university of basel, Switzerland

9 1 Lund University, the University of Rand, Sweden

92 University of Birmingham, UK

93 University of Rome, Italy

94 Humboldt University of Berlin Humboldt University of Berlin, Germany

95 University of Utah, USA University of Utah, USA

96 Nagoya University, Japan Nagoya University, Japan

97 Stockholm University, Sweden

Tufts University, USA

University of Bonn, Germany