If after the initial forty-eight (48) month period of service and during each subsequent twelve (12) month period of service, Medical Center does not provide GKF with a reasonable economic justification to continue providing Gamma Knife services hereunder, then and in that event, on the date which is forty-eight (48) months after the Commencement Date and on each anniversary date thereafter during the term of this Agreement, GKF shall have the option of terminating this Agreement upon the giving of not less than nine (9) months prior written notice to Medical Center. Should GKF elect to terminate this Agreement, GKF shall bear the costs to remove the Equipment from the Medical Center, including the Cobalt-60 sources.