Hospital of University of Pennsylvania, Philadelphia, Pennsylvania, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
Clinical Trials Unit. University of Pennsylvania, Philadelphia, Pennsylvania, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
Presbyterian Medical Center, Philadelphia, Pennsylvania, United States
Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
Tufts University School of Medicine, Boston, Massachusetts, United States
Johns Hopkins University, Baltimore, Maryland, United States
St. Francis Hospital, Wilmington, Delaware, United States