Parameter values used in the model.

It is difficult to obtain experimentally valid parameter values for all the parameters in the model and consequently these values are not available in the literature. In particular it is extremely hard to measure in vivo values, but most of the parameter that the model requires have not even been measured in vitro. Therefore, most values are order of magnitude estimates. Since the aim of this study is to produce qualitative results, having exact, experimentally determined parameter values is less critical than for a quantitative predictive model. The values below have been rescaled in space and time in order to normalise the intima width. We take an intima width of 40 μm [59]. We use a time scale of ∼ 7.7 × 106 s (approximately 89 days) to rescale the equations. Further details on the rescaling can be found in [58].