PET CT referral suppliers: 1. Which PET CT suppliers do you use for your PET CT referrals? 2. How are the tenders for these referrals accessed and when are they put out to tender? 3. Are any of your PET CT referrals currently under contract with your suppliers and if so when are the contracts up for renewal? 4. Are there any extra costs to the DHB for providing PET CT scans to patients, e.g. travel costs, accommodation?