Very good TrueHoop piece on concussions and the NBA. We normally think of head injuries as a football thing, but between hitting the deck hard after a foul and flying elbows under the basket, folks do "get their bell rung" more than in the NBA ad where they did Carol of the Bells with bouncing balls.
We know more about concussions that we did years ago, but that knowledge isn't universal. The piece points out that even team doctors don't have major backgrounds in neurology that would allow them to fully diagnose brain damage from concussions, so training of trainers and doctors is needed.
Also, that "hey, he just got his bell rung" macho attitude needs to be tamped down a notch. When Anthony Davis had to be benched with a concussion, his coach pulled out the putting-them-in-pink-tutus meme to protest the IR time. Basketball is something of a contact sport, even if such contact does draw a foul most of the time; however, treating injuries evolves with out knowledge, and our attitude needs to get out of the Bronze Age as well.