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Low-power reflected-light stereozoom microscope images of FG-1 mattress subsamples acquired at 10×. (a) Synthetic, woven outer cover material from top side of mattress. (b) Synthetic, fibrous mat beneath outer cover material from top side of mattress. (c) Synthetic, woven outer cover material from side of mattress. (d) Outer cover material from bottom of mattress with fibrous mat, foam coating, and woven fibers.
