This excerpt taken from the CBST DEF 14A filed Apr 26, 2007.
C Authorized SignaturesThis section must be completed for your vote to be countedDate and Sign Below
Please sign exactly as name(s) appears hereon. Joint owners should each sign. When signing as attorney, executor, administrator, corporate officer, trustee, guardian, or custodian, please give full title. The undersigned hereby acknowledge(s) receipt of a copy of the accompanying Notice of 2007 Annual Meeting of Stockholders and related Proxy Statement.