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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: Environ Res. 2018 Feb;161:314–320. doi: 10.1016/j.envres.2017.11.019

FIGURE 2.

FIGURE 2

Representative images showing the morphology of undifferentiated (A & B) or differentiated (C & D) THP-1 cells after exposure to control media (A & C) or 2μg/mL UFP (B & D). Arrow indicates an example of a visible particle agglomerate.