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Issued and outstanding: no shares at March 31, 2012 and at March 31, 2011" name="us-gaap:PreferredStockValue"/><Concept balance="credit" periodType="instant" datatype="xbrli:monetaryItemType" label="Common stock, $0.001 par value: Authorized: 100,000,000 shares; Issued and outstanding: 70,679,493 shares and 62,379,030 shares at March 31, 2012 and 2011, respectively" name="us-gaap:CommonStockValue"/><Concept balance="credit" periodType="instant" datatype="xbrli:monetaryItemType" label="Additional paid-in capital" name="us-gaap:AdditionalPaidInCapital"/><Concept balance="credit" periodType="instant" datatype="xbrli:monetaryItemType" label="Accumulated other comprehensive loss" name="us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax"/><Concept balance="credit" periodType="instant" datatype="xbrli:monetaryItemType" label="Accumulated deficit" name="us-gaap:RetainedEarningsAccumulatedDeficit"/><Concept balance="credit" periodType="instant" datatype="xbrli:monetaryItemType" label="Total stockholders' equity" name="us-gaap:StockholdersEquity"/><Concept balance="credit" periodType="instant" datatype="xbrli:monetaryItemType" label="Total liabilities and stockholders' equity" name="us-gaap:LiabilitiesAndStockholdersEquity"/></Abstract></Abstract></Abstract>    </Network>
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