Yes, one thing that is important is, of course, privacy. In the Netherlands, it is arranged that the patient data are anonymous. With up-to-date encryption, that's a very good idea, and that gives privacy a good perspective.
The other thing that is important is which data should be used. There is international consensus on the data. In Australia and the Netherlands, the same data are more or less registered, but, in addition, there should be a committee to look at the PROMs, the patient-reported outcome measurements, which are very important, I think.