1. U.S. Food and Drug Administration (FDA), Center for Devices and Radiological Health, Division of Imaging, Diagnostics, and Software Reliability, Office of Science and Engineering Laboratories, Silver Spring, Maryland, United States
2. Washington University School of Medicine, Department of Pathology and Immunology, St. Louis, Missouri, United States
3. U.S. Food and Drug Administration (FDA), Division of Molecular Genetics and Pathology, Silver Spring, Maryland, United States
4. University of Oklahoma Health Sciences Center, Department of Obstetrics and Gynecology, Oklahoma City, Oklahoma, United States
5. University of Oklahoma Health Sciences Center, Department of Pathology, Oklahoma City, Oklahoma, United States