Exhibit 99.3 August 19, 1999 Boston Properties 599 Lexington Avenue, Suite 1600 New York, New York 10022 Dear Sir or Madam: This letter confirms my consent to serve as a member of the Board of Directors of Ventiv Health, Inc. Confirmed: /s/ Mortimer...

                                                                    Exhibit 99.3

August 19, 1999

Boston Properties
000 Xxxxxxxxx Xxxxxx, Xxxxx 0000
Xxx Xxxx, Xxx Xxxx 00000


Dear Sir or Madam:

This letter confirms my consent to serve as a member of the Board of Directors
of Ventiv Health, Inc.


Confirmed:


/s/  Xxxxxxxx X. Xxxxxxxxx
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Xxxxxxxx X. Xxxxxxxxx