<qa>  What is the estimated number of PET scan referrals?A total of 5,000 patients will be entered into the study. This number is based on the anticipated number of PET scan referrals based on the criteria for study inclusion outlined below and our clinical capacity of 12 to 14 patients per day operating 220 days per year. This will be the only publicly funded PET program in the province of British Columbia. A sample size of 5,000 patients will allow the PET program in BC to operate until Phase B of the Functional Imaging Program is implemented and the BCCA is positioned to submit an NDS for 18F-FDG. 