Fig. 3

Boxplots for T1- and T2-values for travelling volunteers across the three participating sites. Boxplots representing the median (solid inside the box), interquartile range (box) and 1.5*interquartile range (whiskers) for T1- and T2- mapping at each site (site I blue, site II orange, site III grey). Every value below or above 1.5*interquartile range is marked as an outlier. Grey lines connect each individual travelling volunteer at each scan site