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. 2014 Oct 16;1:1123–1132. doi: 10.1016/j.toxrep.2014.10.005

Figure 1.

Figure 1

Subsampling of hair samples incorporating 14 cm of hair growth beginning proximal to the scalp. Subsamples included approximately 4 cm of each of proximal, middle, and distal segments with 1 cm between segments.