are many other similar
        sources of variation in price. Our tool automatically identifies all
        the biggest cost-saving opportunities by examining variation in the
        price-per-unit of all treatments, and then compares every practice or
        Sub-ICB Location against the best 10% of most efficient prescribers, for every
        treatment. This is a massive piece of computation run by our Bennett Institute at
        the University of Oxford, every month. The cost savings can be viewed
   