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. Author manuscript; available in PMC: 2019 Nov 1.
Published in final edited form as: Neurosci Biobehav Rev. 2018 Aug 9;94:149–165. doi: 10.1016/j.neubiorev.2018.08.002

Figure 2: Number of Articles per Year.

Figure 2:

Figure 2 presents the total number of peer-reviewed biomarker studies (N=56) that were published on acute to semi-acute pediatric mild traumatic brain injury during the period under review (1990–2017). With the exception of the first bin (1990–2001), years are grouped into 2 year intervals.