Exhibit 1
JOINT FILING AGREEMENT
This will confirm the agreement by and between the undersigned that
the Schedule 13D filed on or about this date and any amendments thereto with
respect to beneficial ownership by the undersigned of shares of Common Stock,
par value $.001 per share, of TheraSense, Inc. is being filed on behalf of each
of the undersigned under the Securities Exchange Act of 1934, as amended. This
agreement may be executed in two or more counterparts, each of which shall be
deemed an original, but all of which together shall constitute one and the same
instrument.
Dated: January 22, 2004
XXXXXX LABORATORIES
By: /s/ Xxxxxxx X. Xxxxxxxx
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Name: Xxxxxxx X. Xxxxxxxx
Title: President and Chief Operating
Officer, Medical Products Group
CORVETTE ACQUISITION CORP.
By: /s/ Xxxxxx X. Xxxxxxx
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Name: Xxxxxx X. Xxxxxxx
Title: President
