Bladder cancer early smoking link

BBC NEWS Health Bladder cancer early smoking link: "Researchers funded by Cancer Research UK looked at data on almost 430,000 people across Europe.
They found people who smoked before the age of 15 were three times more likely to get bladder cancer later in life.
Those exposed to second-hand smoke in childhood were almost 40% more likely to develop bladder cancer.
The disease is the fourth most common cancer among men and kills more than 4,800 people in the UK each year.
The research was published in the International Journal of Cancer. /.../"