2006 (5)
2007 (359)
2008 (314)
2009 (177)
2010 (162)
2011 (90)
 
  | Research school (name) (state) | 
| Columbia University (NY) | 
| Duke University (NC) | 
| Harvard University (MA) | 
| Johns Hopkins University (MD) | 
| Stanford University (CA) | 
| University of California--San Francisco | 
| University of Pennsylvania (Perelman) | 
| University of Washington | 
| Washington University in St. Louis | 
| Yale University (CT) | 
| Primary care school (name) | 
| Michigan State University (College of Osteopathic Medicine) | 
| Oregon Health and Science University | 
| University of California--San Francisco | 
| University of Massachusetts--Worcester | 
| University of Michigan--Ann Arbor | 
| University of Minnesota | 
| University of Nebraska Medical Center | 
| University of North Carolina--Chapel Hill | 
| University of Washington | 
| University of Wisconsin--Madison | 
