Assistant vice president, international affairs, Pharmaceutical Research and Manufacturers of America, Washington, D.C. (Wong) Senior vice president, Economic and Social Research Institute, Washington, D.C. (Legnini) Research associate, Health Research and Educational Trust, Washington, D.C. (Whitmore) For more information on this article, please contact Ms. Wong at: [email protected]. Acknowledgment This research was supported by the Robert Wood Johnson Foundation and was written while the authors were employed by the Center for Studying Health System Change in Washington, D.C.
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Wong et al. (2000) studied this question.