1. University of Massachusetts Medical School and Barre Family Health Center and CleanSlate Research and Education Foundation, Barre and Florence, Massachusetts (S.A.M.)
2. University of Massachusetts Amherst College of Nursing and CleanSlate Research and Education Foundation, Amherst and Florence, Massachusetts (L.M.C., J.D.B.)
3. CleanSlate Research and Education Foundation, Florence, Massachusetts (A.W.)