Based on the information currently known to us, we believe that the following information identifies material risk factors affecting our company. However, the risks and uncertainties we face are not limited to those described below. Additional risks and uncertainties may also adversely affect our business. If any of the following risks and uncertainties develops into actual events, these events could have a material adverse effect on our business, financial condition or results of operations. In such case, the trading price of our common stock could decline.

The condition of the financial markets, including volatility and deterioration in the capital and credit markets, could limit the availability of debt and equity financing sources to fund the capital and liquidity requirements of our business, as well as negatively impact or impair the value of our future portfolio of cash, cash equivalents and investments.

We are subject to various government reviews, audits and investigations that could adversely affect our business, including an obligation to refund amounts previously paid to us, potential criminal charges, the imposition of fines, and/or the loss of our right to participate in Medicare and Medicaid programs.