Purdue University
USA
Iowa State University
University of California, Davis
North Carolina State University
University of Illinois at Urbana-Champaign
Cornell University
University of Florida
Ohio State University
Texas A&M University
University of Nebraska - Lincoln
The Pennsylvania State University
Virginia Polytechnic Institute and State University
University of Wisconsin - Madison
Michigan State University
Kansas State University
Washington State University
University of Minnesota, Twin Cities
University of Kentucky
Auburn University
The University of Tennessee, Knoxville