Institution
- University of Michigan33
- University of Michigan. Medical Center1
- University of Michigan. Medical School3
- University of Michigan. University Hospital2
- University of Minnesota19
- University of Minnesota. Medical School1
- University of Missouri2
- University of Mumbai1
- University of Mysore1
- University of Nairobi1
- University of Nebraska4
- University of Nebraska--Lincoln2
- University of New Hampshire2
- University of New Mexico2
- University of New South Wales3
- University of New Zealand1
- University of Newcastle upon Tyne1
- University of North Carolina Wilmington1
- University of North Carolina at Chapel Hill11
- University of North Dakota1