1. Center for Statistical Sciences, Brown University, Providence, Rhode Island.
2. Department of Research and Development, CardioDx Inc., Palo Alto, California.
3. U.S. Centers for Disease Control and Prevention, Atlanta, Georgia.
4. Data First Consulting Inc., Belmont, CA.
5. Department of Biostatistics and Center for Statistical Sciences, Brown University, Providence, Rhode Island.
6. Division of Infectious Diseases, Brown University Alpert Medical School, Providence, Rhode Island.