1. Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
2. Department of Pathology, Montefiore Medical Center, Bronx, New York, USA
3. Department of Pathology, The Medical College of Wisconsin, Milwaukee, Wisconsin, USA
4. Department of Pathology, University of California, San Diego, La Jolla, California, USA
5. Department of Medicine, University of California, San Diego, La Jolla, California, USA
6. Cepheid, Sunnyvale, California, USA