Exhibit 23 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our report included in this Form 10-K, into the Company's previously filed form S-8 Registration Statements (Nos. 333-44705, 333-25333, 333-25335 and 333-25337). /s/ ARTHUR ANDERSEN LLP Boston, Massachusetts March 24, 1999