Professor Arnold Hill:

It varies in each case we see. Because it is such a rare entity in a 30-year-old, it may be that some people may not have been aware of coming for attention at that early stage. They may present somewhat later. There are very small numbers of these each year in the country. There would probably be less than 20 30-year-olds in the country each year with breast cancer whereas we have approximately 3,500 breast cancers each year. It is, therefore, a very small number.