1. Timothy M. Dall ( ) is managing director, applied economics, at the Lewin Group in Falls Church, Virginia.
2. Yiduo Zhang is a senior associate at the Lewin Group.
3. Yaozhu J. Chen is a senior associate at the Lewin Group.
4. William W. Quick is executive medical director, Endocrinology and Metabolic Disease, Medical and Scientific Affairs, at i3 Research in Basking Ridge, New Jersey.
5. Wenya G. Yang is a senior associate at the Lewin Group.
6. Jeanene Fogli is director, Endocrinology, Metabolic Disease, and Cardiology, Medical and Scientific Affairs, at i3 Research in Boston, Massachusetts.