1. Department of Pathology and Laboratory Medicine, Temple University Hospital, Philadelphia, PA;
2. Department of Pathology and Laboratory Medicine, The Ohio State University Wexner Medical Center/James Cancer Hospital, Columbus, OH;
3. Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA;
4. Department of Pathology and Dermatology, Wake Forest University, School of Medicine, Medical Center Boulevard, Winston-Salem, NC; and
5. Department of Pathology & Microbiology, University of Nebraska Medical Center, Omaha, NE.