General and administrative expenses, which include business development expenses and amortization of intangible assets, for the quarter and year ended December 31, 2010, were $3.1 million and $12.1 million, compared to $2.6 million and $13.7 million for the quarter and year ended December 31, 2009. The increase for the three-month period was primarily due to a reversal of a deferred tax liability in the fourth quarter of 2009, which did not occur in 2010. The decrease for the annual period was primarily due to lower legal and related fees. These decreases were partially offset by an increase in recurring operating expenses, including the amortization of intangible assets acquired in the 2009 merger, due to a full year operating as a combined company in 2010.

Net Loss Attributable to Common Stockholders The $6.8 million decrease in net loss attributable to common stockholders for the year ended December 31, 2010, compared with the year ended 2009, resulted primarily from a decrease in the loss related to the change in fa
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