Clinical tools have already been developed to greatly help clinicians focus on x-rays to those patients who are likely to have a fracture and not those that probably do not. Such clinical equipment or rules must have an extremely high sensitivity and sensible specificity to be helpful.. Acute ankle and knee injuries: to x-ray or not? The Ottawa ankle and knee rules are validated clinical decision tools that guide clinicians in targeting radiology to those patients who will probably have an ankle or knee fracture, minimising x-ray exposure of individuals and reducing costs thus. Acute injuries to the ankle and knee joints are normal and patients usually present to a crisis department or an over-all practice.Intervention We provided children with 1 can per day of a noncaloric, artificially sweetened, noncarbonated beverage or a sugar-containing noncarbonated beverage. We developed custom drinks because of this study to ensure that the sugar-free and sugar-containing beverages tasted and looked basically the same.20 We hired Refresco Benelux to create these beverages. The identical-looking 250-ml cans provided either 0 or 26 g of sucrose . The sugar-free beverages included 34 mg of sucralose and 12 mg of acesulfame potassium per can.21 Participating children received a box at school each full week labeled with their name and containing 8 cans, 1 for each day time of the week plus 1 extra to be utilized as a extra in case a can was misplaced.