Berkshire Hathaway Berkshire Hathaway

Dr. Atul Gawande has been picked to lead the high-profile joint venture in health care formed by Amazon, Berkshire Hathaway and JP Morgan Chase. Mint/Hindustan Times via Getty Images hide caption

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Mint/Hindustan Times via Getty Images

Atul Gawande: Medicine Has Become A Team Sport.

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(From left) Jamie Dimon, CEO of JPMorgan Chase; Warren Buffett, CEO of Berkshire Hathaway; and Jeff Bezos, CEO of Amazon, are creating health care venture, but details are scarce. (From left) Simon Dawson/Bloomberg via Getty Images; Andy Kropa/Invision/AP; Mark Wilson/Getty Images hide caption

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(From left) Simon Dawson/Bloomberg via Getty Images; Andy Kropa/Invision/AP; Mark Wilson/Getty Images

Berkshire Hathaway Chairman and CEO Warren Buffett visits the exhibit floor in Omaha, Neb., Saturday, where company subsidiaries display their products during the annual shareholders meeting. Nati Harnik/AP hide caption

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Nati Harnik/AP

Warren Buffett, CEO of Berkshire Hathaway, drinks a Cherry Coca-Cola prior to the company's annual meeting in Omaha, Neb., in 2010. Daniel Acker/Bloomberg via Getty Images hide caption

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Daniel Acker/Bloomberg via Getty Images

Commemorative ketchup bottles with portraits of Warren Buffett are seen at the exhibition of Berkshire Hathaway companies at the annual meeting in Omaha, Neb., on May 3, 2014. Kraft Foods said it will merge with ketchup maker H.J. Heinz Co., owned by 3G Capital and Berkshire Hathaway Inc, to form the world's fifth-largest food and beverage company. Rick Wilking /Reuters /Landov hide caption

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Rick Wilking /Reuters /Landov