1. School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
2. Baylor Scott & White Health, Temple, Texas, USA
3. Laboratory Corporation of America Holdings, Burlington, North Carolina, USA
4. Segal Trials, Inc., Miami Lakes, Florida, USA
5. Indiana University School of Medicine, Indianapolis, Indiana, USA
6. Planned Parenthood of Southern New England, New Haven, Connecticut, USA
7. School of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
8. Brown University, Providence, Rhode Island, USA
9. The University of Mississippi Medical Center, Jackson, Mississippi, USA
10. BioCollections Worldwide, Inc., Miami, Florida, USA
11. Roche Molecular Systems Inc., Pleasanton, California, USA
12. Quest Diagnostics Infectious Disease, San Juan Capistrano, California, USA
13. Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA