The rise and fall of Theranos, in one graphic

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Theranos, the blood-testing startup with a $9 billion valuation, has had a turbulent year.

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On Wednesday, the company announced major changes, including that its president and chief operating officer Sunny Balwani, who served as CEO and founder Elizabeth Holmes' second-in-command, is retiring.

Here's a review of the events that led up to this point over the last year.

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BI_Graphic The rise and fall of Theranos (1)

Dragan Radovanovic/Business Insider

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