EXHIBIT 6
Agreement Regarding Joint Filing
and
Power of Attorney
The undersigned, for good and valuable consideration, hereby agree that
they shall jointly file an acquisition statement under Section 13(d) of the
Securities Exchange Act of 1934, as amended, with respect to the acquisition by
the undersigned of shares of common stock of ▇▇▇▇▇▇▇▇.▇▇▇, Inc., a Delaware
corporation, and that they shall cooperate with each other regarding the filing,
and when appropriate, amending of such acquisition statement.
The undersigned hereby appoint ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇ and ▇▇▇▇▇ ▇. ▇▇▇▇▇▇,
and each of them (with full power to each of them to act alone), as
attorneys-in-fact and agents, in all capacities, to execute, on their behalf,
and to file with the appropriate issuers, exchanges and regulatory authorities,
this Schedule 13D and any and all amendments to this Schedule 13D and documents
relating thereto required to be filed under the Securities Exchange Act of 1934,
as amended, including exhibits, attachments and amendments thereto. The
undersigned hereby grant to said attorneys-in-fact full authority to do every
act necessary to be done in order to effectuate the same as fully, to all
intents and purposes, as the undersigned could if personally present, thereby
ratifying all that said attorneys-in-fact and agents may lawfully do or cause to
be done by virtue hereof. This power of attorney shall remain in full force and
effect until either revoked in writing by the undersigned.
The undersigned hereby execute this Agreement Regarding Joint Filing
and Power of Attorney as of this 21st day of October, 1999.
EXPRESS SCRIPTS, INC.
By: /s/ ▇▇▇▇▇▇▇ ▇. ▇▇▇▇
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Name: ▇▇▇▇▇▇▇ ▇. ▇▇▇▇
Title: President and Chief Executive Officer
▇▇▇▇▇▇▇▇▇▇▇▇.▇▇▇, INC.
By: /s/ ▇▇▇▇▇▇▇ ▇. ▇▇▇▇
Name: ▇▇▇▇▇▇▇ ▇. ▇▇▇▇
Title: President and Chairman
NEW YORK LIFE INSURANCE COMPANY
By: /s/ ▇▇▇▇▇▇ ▇▇▇▇▇▇
Name: ▇▇▇▇▇▇ ▇▇▇▇▇▇
Title: Executive Vice President and CFO
NYLIFE LLC
By: /s/ Melbourne ▇▇▇▇▇
Name: Melbourne ▇▇▇▇▇
Title: Senior Vice President-Legal
NYLIFE HEALTHCARE MANAGEMENT, INC.
By: /s/ ▇▇▇▇▇▇ ▇▇▇▇▇▇
Name: ▇▇▇▇▇▇ ▇▇▇▇▇▇
Title: Executive Vice President