EXHIBIT 4.1 ASSETS 2011 Sunnyvale 2010 Clinic: current Assets: Balance Sheets December 31, 2011 and 2010 (in thousands) $12,102 6,486 5,000 25.927 2,302 $ 39.715 $48,059 25,.837 $ 52.450 $49,549 $115,101 Cash and cash equivalents Short-term investments Net patient accounts receivable Inventories 10,000 28,509 3,695 $54.306 Total current assets Long-term investments Net property and equipment Total assets $154,815 2011 2010 LIABILITIES AND EQUITY Current Liabilities: $4.334 $ 3.345 6.933 5,037 $ 15.315 $85,322 $53.578 $ 68,893 $54,068 $46,208 $ 115,101 Notes payable Accounts payable Accrued expenses 5,022 6,069 $ 15,425 Total current liabilities Long-term debt $100,747 Total liabilities Net assets (Equity) $154,815- Total liabilities and equity