Go! Go! Go! Yesterday was Sports Day at Jason's school. It was hot and sunny, the music was blaring and all the mums and dads were there with their cameras and camcorders. Here Jason is just behind his classmate and sprint rival Ah-fu at the half-way point of the 60-metre race. Well, I am happy and proud to report that Jason manaaged to pull ahead and win the race despite a gormless parent who wandered onto the track in front of Jason!
John Worrall on Evidence-Based Medicine
How trustworthy are the experiments on which evidence-based medicine rests? John Worrall of the London School of Economics discusses cause and effect with Da...