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                                                                   Exhibit 23.13

                      CONSENT OF INDEPENDENT ACCOUNTANTS


As independent public accountants, we hereby consent to the use in this
Registration Statement of our report dated April 18, 1999, included herein, and
to all references to our Firm included in this Registration Statement. It should
be noted that we have performed no audit procedures subsequent to April 18,
1999, and have no responsibility for events and circumstances occurring after
that date.

/s/ Arthur Andersen LLP

Boston, Massachusetts
June 29, 2000



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