Bear Stearns

Bear Stearns. Means, collectively, (i) Bear Stearns Merchant Banking Partners II, L.P., a Delaware limited partnership, (ii) Bear Stearns Merchant Banking Investors II, L.P., a Delaware limited partnership, (iii) Bear Stearns MB-PSERS II, L.P., a Delaware limited partnership, (iv) The BSC Employee Fund III, L.P., a Delaware limited partnership, and (v) The BSC Employee Fund IV, L.P., a Delaware limited partnership.

Bear Stearns. Bear, Stearns & Co. Inc. ("Bear Stearns")

Bear Stearns. Bear, Stearns & Co. Inc.

Bear Stearns. Shall mean Bear, Stearns & Co. Inc.

Bear Stearns. Collectively, Bear Stearns Health Innoventures, L.P., Bear Stearns Health Innoventures Offshore, L.P., BSHI Members, L.L.C., Bear Stearns Health Innoventures Employee Fund, L.P. and BX, L.P.