definiens: means all office - based physicians and other health care professionals in the Territory selected by CRTX from the DEY FFIS Target Universe . For purposes of this Agreement, the shall mean the group of office - based physicians and other health care professionals in the Territory that DEY uses internally for its Call plan for FFIS, which group consists of allergists, pulmonologists, internal medicine physicians, and primary care physicians ( excluding pediatricians ) who belong to the FFIS Market Quintile 2 or ~ based upon third party data, such as Wolters Kluwer Health . DEY shall retain the right to modify the DEY FFIS Target Universe from lime to time ; provided, however, any such modification shalJ not affect a previously agreed to CRTX ~ month Call plan . CRTX will notify DEY of the date of the next CRTX Call plan period at least sixty ( 60 ) days prior to the start 5 US1DOCS 6280441v2 date of the period . DEY, within fifteen ( 15 ) days after receipt of such notice, will provide the DEY FFIS Target Universe to a third party retained by CRTX and approved by DEY so that the third party may use it to assist CRTX with its selection of Detail Targets for the applicable can plan . DEY and CRTX acknowledge and agree that the DEY FFIS Target Universe for the ~ month period starting on the Detai ( Commencement Date has been finalized by the parties