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On Tuesday, the federal government released details of payments to doctors by every pharmaceutical and medical device manufacturer in the country. 
The information is being made public under a  provision of the 2010 Affordable Care Act. The law  mandates disclosure of payments to doctors, dentists, chiropractors, podiatrists and optometrists for things like promotional speaking, consulting, meals, educational items and research.

It’s not quite clear what the data will show — in part because the first batch will be incomplete, covering spending for only a few months at the end of 2013 — but we at ProPublica have some good guesses. That’s because we have been detailing relationships between doctors and the pharmaceutical industry for the past four years as part of our  Dollars for Docs project.

We’ve aggregated information from the websites of some large drug companies, which publish their payments as a condition of settling federal whistle-blower lawsuits alleging improper marketing or kickbacks. In cooperation with the website  Pharmashine, we’ve added data for 2013, which now covers 17 drug companies accounting for half of United States drug sales that year. (You can look up your doctor using  our easy search tool.)