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Teenagers who play sport and exercise for more than 14 hours a week are worse off physically than those who are less active
Medicine's 'miracle' treatments for blocked arteries - such as balloon angioplasty and stents - are proving to be a killer
Doctors regularly operate on the wrong part of the body - and even on the wrong patient, a medical claims insurer has revealed
Doctors make a serious mistake - such as making a wrong diagnosis or recommending an inappropriate treatment - with half of all the patients they see