1.

University of California–Berkeley (CA)

2.

Massachusetts Institute of Technology (MA)

3.

Harvard University (MA)

4.

Stanford University (CA)

4.

University of California–San Francisco (CA)

6.

Scripps Research Institute (CA)

7.

University of Wisconsin–Madison (WI)

8.

California Institute of Technology (CA)

9.

University of California–San Diego (CA)

10.

Yale University (CT)

11.

Johns Hopkins University (MD)

12.

University of California–Los Angeles (CA)

13.

University of Michigan–Ann Arbor (MI)

14.

University of Washington (WA)