Fig. 7

Box-and-whisker plots of the evaluation of droplet samples representing MNPSNP mass accumulated on the surface of ferritic steel and titanium alloy implants. Summed score respectively is shown for the examined groups 0, 1, 7, 21 and 42. The boxes represent the 25th to 75th percentiles, the black solid lines indicate the median values and circles show outliers. For statistical significances, see Table 2