1. Robin E. Clark ( ) is an associate professor at the University of Massachusetts Medical School, in Worcester.
2. Mihail Samnaliev is a lecturer in health economics in the clinical research program of Children’s Hospital in Boston, Massachusetts.
3. Jeffrey D. Baxter is an assistant professor at the University of Massachusetts Medical School.
4. Gary Y. Leung is a statistician at the North Carolina Central Cancer Registry, in Raleigh.