Fig. 2

a Trends of first health care encounter for sports- and non-sports- related concussions in Medicaid-insured children by provider specialty, from pre- to post-law period, 2008–2016. b Trends of follow-up health care encounters for sports- and non-sports-related concussions in Medicaid-insured children by provider specialty from pre- to post-law period, 2008–2016