It has always struck me as particularly worrying when adverts say that 50% or 80% of people say that something is successful, but with only a very small dataset. That is happening across adverts on daytime television and in a whole load of other situations. I know that it is also happening in this sector. I am interested in whether my hon. Friend has any further thoughts on how we might be able to combat that. If datasets are to be used in persuading people to take up a product or to have a surgical procedure, those datasets must be comprehensive.