1. Health Analytics Network, Pittsburgh, PA 15237, USA
2. Department of Statistics, Mathematics & Computer Application, Bihar Agricultural University, Bhagalpur 813210, India
3. Department of Environmental Science, American University, Washington, DC 20016, USA
4. Biomedware, Inc., Ann Arbor, MI 48103, USA
5. Allegheny County Health Department, Pittsburgh, PA 15219, USA
6. Heed Lab, North Bethesda, MD 20723, USA
7. Department of Family Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
8. Department of Statistics and Applied Probability, University of California, Santa Barbara, CA 93106, USA