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Fiber-associated complexes on overgrown carbon-coated gold grids. (A) General overview of an overgrown carbon-coated gold grid after negative staining with uranyl acetate, displaying several coccoid I. hospitalis cells. The fiber-associated complexes are indicated by arrows in panel A and are shown enlarged in panels B to E. Scale bars, 5 μm (A) and 100 nm (B to E).
