EX-23.1 7 a2070436zex-23_1.txt EX-23.1 EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statements on Forms S-8 (File Nos. 333-09245 and 333-09247) of our report dated January 29, 2002 relating to the financial statements and financial statement schedule, which appear in this Annual Report on Form 10-K. /s/ PricewaterhouseCoopers LLP Boston, Massachusetts February 21, 2002