1. Department of Dermatology; University of Pittsburgh Medical Center; Pittsburgh PA USA
2. Department of Medicine; Lankenau Medical Center; Wynnewood PA USA
3. University of Pittsburgh School of Medicine; Pittsburgh PA USA
4. Department of Hematology/Oncology; University of Pittsburgh Medical Center; Pittsburgh PA USA
5. Department of Pathology; University of Pittsburgh Medical Center; Pittsburgh PA USA
6. Department of Pathology; Magee Womens Hospital; Pittsburgh PA USA
7. Department of Pathology; Children's Hospital of Pittsburgh; Pittsburgh PA USA