Ford briefly gained some kudos among politicians and the public for being the only one of Detroit's big three carmakers not to file for bankruptcy in the wake of the financial crisis, but is now stuck with higher costs than its rivals.

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"Do your research upfront, " said Ben Hartmere, a graduate of University of North Carolina-Chapel Hill's Kenan-Flagler Business School who works for business filing services company File ONE as vice president of business development.

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Schwarz is currently compiling the data from three separate rotigotine trials--two on early stage patients and one on late-stage patients--and the company expects to file for U.S. Food and Drug Administration approval by this fall.

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