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1. Radient Pharmaceuticals ( RPC)

Company Profile: Radient Pharmaceuticals produces and sells diagnostic tests to monitor and detect types of cancer. Last month, TheStreet's Adam Feuerstein reported that Radient missed a loan payment of $843,750 in May, putting the company in default.

Altman Z-score: -629.33

Current Share Price: 20 cents (June 7)

2011 Return: -80%

Current Ratio: 0.01, indicating that Radient would have major difficulties covering its short-term liabilities with its current assets.

>>To see these stocks in action, visit the Stocks Under $5 at Risk of Bankruptcy portfolio on Stockpickr.

-- Written by Robert Holmes in Boston.

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Disclosure: TheStreet's editorial policy prohibits staff editors, reporters and analysts from holding positions in any individual stocks.

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