I once read somewhere that 42% of an NFL team’s regular-season record can be accounted for by randomness, or sample error, to be clear. Imagine flipping a coin 10 times. It usually doesn’t land on ...

Objective To investigate the occurrence of unintentional injuries among children aged 3 to 12 in China over the past 5 years, and to provide a scientific basis for the prevention and control of such ...