Theranos founder Elizabeth Holmes has introduced a 95-pound testing device called "miniLab" at the American Association for Clinical Chemistry meeting in Philadelphia. The controversial blood testing company, which promised results with just a fingerprick, has been in hot water ever since The Wall Street Journal published a series of articles detailing its flawed results and other issues. In fact, it voided its past test results and lost its contract with Walgreens over the past few months. Holmes was also banned from owning a lab for two years. That's why the convention's the attendees were expecting a presentation clarifying the science behind its fingerprick-testing technique, according to Bloomberg.