Urine culture in the diagnosis of colovesical fistula.

earned for the practice by the trainee. On most days the trainee had a midmorning break, when he drank a cup of coffee provided by the practice. The trainee drank about 210 cups of coffee in one year. A 300 g jar of coffee makes 165 cups at a cost of £3.85; 210 cups of coffee will have cost £4.89. The trainee added 25 ml of milk to each cup, a total of 9-2 pints of milk over the year at a cost of £3.33. The total cost of the trainee to the practice was £8.22. The net financial benefit to the practice ofthe trainee was £31 345.44.