"Henrik Zetterberg is among the world's leading brain researchers and has conducted research on concussions in sports for many years and in numerous studies."
Wow, what are the odds? "Henrik Zetterberg" in Sweden must be like John Smith in the States. At least he's doing hockey-related work while he's out.
Seriously, it'd be great to have a blood test for concussions. As much as the new process has improved things (tongue-in-cheek) from the old days, it would be good to remove a lot of the subjectivity.