JOINT FILING AGREEMENTJoint Filing Agreement • February 14th, 2006 • Biogen Idec Inc • Biological products, (no disgnostic substances)
The undersigned, the Reporting Persons named in this Schedule 13G, hereby agree that this Schedule 13G is filed on a combined basis on behalf of each of them and that each Reporting Person is individually responsible for the timely filing of any amendments to this Schedule 13G. Each Reporting Person further agrees that it is responsible for the completeness and accuracy of the information concerning such Reporting Persons, respectively, contained in this Schedule 13G and that it is not responsible for the completeness or accuracy of the information concerning the other Reporting Persons.
