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. 2015 Aug 1;15(8):637–668. doi: 10.1089/ast.2014.1235

FIG. 13.

FIG. 13.

Diameter versus bending and number of direction changes in smooth (IO) HFO filaments versus bumpy (QBG) HFO filaments. Smooth HFO filaments from all IO samples exhibited a wide range of diameter values (range=∼1 to 13 μm), and all generally overlapped. In comparison, bumpy HFO filament diameters from 4 of 5 sample sites clustered closely together (range=∼2 to 9 μm) based on sample site. Only one QBG sample site (PS3.1.1 Spot 2) exhibited a wide range of diameter values (range=∼11 to 32 μm). Note the different vertical scale bars. (Color graphics available at www.liebertonline.com/ast)