1. Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
2. Public Health Laboratory, DC Department of Forensic Sciences, Washington, DC, USA
3. Beaumont Health System, Royal Oak, Michigan, USA
4. Department of Pathology, Henry Ford Health System, Detroit, Michigan, USA
5. Department of Pathology, Arkansas Children’s Hospital, Little Rock, Arkansas, USA
6. Department of Pediatrics, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas, USA
7. Department Pathology and Immunology, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas, USA