University of Pittsburgh, University of Pittsburgh - Medical Center (UPMC), University of Pittsburgh, University of Arizona, University of Arizona, University of Arizona, Mayo Clinic, University of Kansas - University of Kansas Medical Center, University of Wisconsin-Madison, Cleveland Clinic, Harvard University - Harvard Medical School, University of California, San Francisco (UCSF) - Department of Medicine, Wake Forest University - School of Medicine, University of California, San Francisco (UCSF) - Department of Medicine, University of California, San Francisco (UCSF) - Department of Medicine, University of Washington, University of Wisconsin-Madison, Harvard University - Harvard Medical School and University of Pittsburgh

University of Iowa, University of Iowa, University of Iowa, Carver College of Medicine, Department of Internal Medicine, University of Iowa - Department of Radiology, University of Iowa, University of Kansas, University of Kansas - University of Kansas Medical Center, University of Wisconsin-Madison, Harvard University - Harvard Medical School, Cleveland Clinic and University of Iowa