Well, I have no reason to doubt the examples that have been cited by the leader of the opposition, and those examples need to be investigated, of course, and investigated fully. Can I say that the ambulance response times model was devised by clinicians. It is designed to ensure that those who are most in need of an ambulance get an ambulance. We know that ambulance response times have improved greatly over the past few months, indeed now for more than a year, but there will be examples that he has detailed that need to be looked at to see why such a situation has arisen.

It is right to say that there has been a great deal of pressure on the NHS and, indeed, on ambulances across the UK over the past few months particularly, and, of course, the cold snap of last week did have an effect, particularly on admissions of strokes, where there was a substantial increase in the number of people who had had strokes because of the cold weather.

So, what we do, of course, is to look to ensure that individual cases are looked at. When it comes to the actual model that's used, it is a model that was devised by clinicians.