Sport-related concussions are a significant public health problem, and concussion management is one of the most controversial issues in sports medicine. The latest international consensus statement on concussion in sport advises that players not return to play on the same day they were injured a...

“Mr Mayor,” said K., “you keep calling my case one of the smallest, yet a great many officials have put their minds to it, and while it may have been very small at first, the zeal of officials has made it into a major one. This is unfortunate since I have no ambition to see towers of files...