1. Robert Tomsich Pathology & Laboratory Medicine InstituteCleveland Clinic Cleveland Ohio USA
2. Pathology and Laboratory MedicineChildrenʼs National Hospital Washington, DC USA
3. Department of Pathology and Laboratory MedicineDartmouth Hitchcock Medical Center Lebanon New Hampshire USA
4. Gulf Coast Regional Blood Center Houston Texas USA
5. Department of Pathology and Laboratory MedicineUniversity of Vermont Medical Center Burlington Vermont USA