Studies that examine the effect of bisphenol A on health have vastly different results depending on who is funding the research, writes David Michaels in The Washington Post. Michaels, an epidemiologist who teaches environmental health policy at George Washington University, writes that he supports "de-linking sponsorship and research." "As long as sponsors of a study have a stake in the conclusions, these conclusions are inevitably suspect, no matter how distinguished the scientist," he writes.

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