Harvard University, US
Johns Hopkins University, US
Stanford University, US
University of California--San Francisco, US
University of Toronto, Canada
University of Washington, US
University of Pennsylvania, US
University of Oxford, UK
Duke University, US
University of California--Los Angeles, US
Columbia University, US
University of Michigan--Ann Arbor, US
Yale University, US
Imperial College London, UK
University College London, UK
Karolinska Institute, Sweden
Massachusetts Institute of Technology, US
University of Pittsburgh, US
University of California--San Diego, US
Washington University in St. Louis, US