1. Eppley Institute, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
2. Syd Labs, Inc, Natick, Massachusetts 01760, United States
3. Human BioMolecular Research Institute, 5310 Eastgate Mall, San Diego, California 92121, United States
4. Precision Antibody, 91330 Red Branch Rd, Columbia, Maryland 21045, United States
5. Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Highway, Chamblee, Georgia 30341, United States