1. Department of Dermatology Texas Children's Hospital, Baylor College of Medicine Houston Texas USA
2. Department of Pathology Texas Children's Hospital Houston Texas USA
3. Department of Pathology and Immunology Baylor College of Medicine Houston Texas USA
4. Department of Hematopathology, Division of Pathology‐Laboratory Medicine University of Texas MD Anderson Cancer Center Houston Texas USA
5. Department of Dermatology Duke University Durham North Carolina USA