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. Author manuscript; available in PMC: 2015 Jun 17.
Published in final edited form as: J Occup Environ Hyg. 2015;12(3):163–171. doi: 10.1080/15459624.2014.957832

FIGURE 2. Distribution of test subjects in the NIOSH principal component analysis panel.

FIGURE 2

Numerals in black font indicate PCA panel number. Numerals in red font indicate test subject number.