1. Kelly L. Lenahan is an associate director at ISPOR—the Professional Society for Health Economics and Outcomes Research, in Lawrenceville, New Jersey. She was a research associate in the Center for the Evaluation of Value and Risk in Health, Tufts Medical Center, in Boston, Massachusetts, when the majority of this research was conducted.
2. Donald E. Nichols is a principal health economist, US Medical Affairs, Genentech, in South San Francisco, California.
3. Rebecca M. Gertler is a research analyst at the Government Accountability Office, in Boston, Massachusetts. She was a research assistant in the Center for the Evaluation of Value and Risk in Health, Tufts Medical Center, when the majority of this research was conducted.
4. James D. Chambers () is an investigator in the Center for the Evaluation of Value and Risk in Health, Tufts Medical Center, and an associate professor of medicine in the School of Medicine, Tufts University, in Boston, Massachusetts.