1. Department of Clinical Pathology, The Cleveland Clinic Foundation, Cleveland, Ohio
2. Department of Clinical Pathology, The Cleveland Clinic Foundation, Cleveland, Ohio; The Milton S. Hershey Medical Center, HG160, Penn State University College of Medicine, PO Box 850, 500 University Drive, Hershey, PA 17033
3. Department of Pediatrics, The Cleveland Clinic Foundation, Cleveland, Ohio