Thus, comparative effectiveness studies can be useful, at times both improving patient care and reducing medical costs.

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Biopharmaceutical companies have been building such comparative effectiveness studies in their clinical development programs for the past decade.

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This gap in knowledge is what comparative effectiveness studies are intended to address.

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Mr Obama wants to expand comparative effectiveness studies and health technology assessments.

ECONOMIST: Technology and medicine

President Obama is pushing "comparative effectiveness" studies that could pit pricey medical devices against cheap generic pills.

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They findings are likely to provide ammunition to legislators and doctors pushing for more "comparative effectiveness" studies to be done as part of health care reform.

FORBES: Effectiveness