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Nature 448, 738 (16 August 2007) | doi:10.1038/448738b; Published online 15 August 2007

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Transparency urged over research payments

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Senator calls for public register of drug-company funds to doctors.

Charles Grassley, the Republican senator for Iowa, has said that he will introduce legislation to set up a national public registry of payments made to doctors by pharmaceutical companies.Four states and the District of Columbia already have laws requiring such disclosures.