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No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. An offer from UBS related to auction rate secutiries held by Tekelec. Under the terms of the offer, UBS has the right, at its discretion, to purchase these securities from Tekelec at par value at any time until July 2, 2012. Tekelec has the right, at its discretion, to require UBS to purchase the securities at part value plus accrued interest at its election at any time between June 30, 2010 and July 2, 2012. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. 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Direct and incremental costs (such as hardware, installation costs and other direct costs) associated with deferred revenue, and sales commission that has been paid but for which associated revenue was deferred at the period end. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Payments of net share-settled payroll taxes related to equity awards. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. 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