 countries, that kind of influence will be really hard to measure, but no doubt it's there now and will continue to be there. Graham, I guess this shows that medicine isn't always restricted by borders, that even decisions about policy can have an influence in other countries. Very often, and what happens in one country can act as a model for others, so influencing global health. Some examples that spring to mind would be the adoption of strict anti-smoking laws and tobacco control measures in the U.S.,