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qj "When you think about it, that's a different kind of public health concern because people are playing these sports and being exposed to hundreds a)
What do you study? http://xxxxl.xioxu.com/ xxxxl
qj "When you think about it, that's a different kind of public health concern because people are playing these sports and being exposed to hundreds and sometimes more than 1,000 impacts over the course of a season, often playing the sport for many years," McAllister says. "So might it be the case that we need to broaden the discussion from concussion as the marker of concern to frequency and severity of head impacts."