American Journal of Managed Care
Vol. 13, Issue (Part 2), Pages 360-369
Landon, Bruce E., Meredith B. Rosenthal, Sharon-Lise T. Normand, Claire Spettell, Adam Lessler, Howard R. Underwood, and Joseph P. Newhouse. “Incentive Formularies and Changes in Prescription Drug Spending among Insured Adults and Their Dependents." American Journal of Managed Care 13.(Part 2) (June 2007): 360-369.