Institution
- University of Notre Dame4
- University of Oklahoma3
- University of Oregon7
- University of Ottawa2
- University of Ottawa, Department of Chemistry1
- University of Oxford17
- University of Pennsylvania29
- University of Pennsylvania. Hospital1
- University of Pennsylvania. School of Medicine5
- University of Pittsburgh10
- University of Pittsburgh. Medical Center1
- University of Pittsburgh. School of Law1
- University of Pittsburgh. School of Medicine1
- University of Queensland1
- University of Richmond1
- University of Rochester10
- University of Saskatchewan3
- University of Scranton1
- University of Sheffield2
- University of South Africa1