Goldman DP, Joyce GF, Escarce JJ, et al. Pharmacy benefits and the use of drugs by the chronically ill. Journal of the American Medical Association. May 2004;291(19):2344-2350.

This study examines how changes to the design of health plan benefits among privately insured populations affected the use of the most common drug classes. In addition, the study identified populations more likely to be at risk for adverse health effects and isolated their responsiveness to cost sharing.

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