Platelet counts and coagulability markers for exposure to air (white); s-GO (blue); or us-GO (red). The dotted lines represent the expected upper and lower limits of normal values. The colour bars and error bars show the mean s.d. ( n = 12 for air and us-GO groups, n = 11 for s-GO groups; biologically independent measurements). No significant differences were found between treatments (two-way analysis of variance followed by Tukeys post hoc test).