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Years ago, an administrator at a community hospital explained to me how well his institution's grand-rounds program worked. “The drug companies find the speakers, pay their honoraria, and provide free food for the doctors, which helps a lot with attendance,” he said. “It works well for us, especially with our budgets so tight.” Yet those lunches were actually quite costly for the hospital: attendees at such events predictably go on to prescribe the products promoted there — which is precisely why the drug companies so willingly pay for these programs.This penetration of commerce into the province of science isn't . . .