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(a) Individual serum bHCG levels in controls (red) and seminoma patients (blue) ranked by the extent of elevation (x-fold of ULN). Waterfall plot: horizontal line denotes upper limit of norm (ULN). Logarithmic scale on y-axis. (b) Individual serum bHCG levels in controls (red) and nonseminoma patients (blue). The figure illustrates greatly elevated bHCG levels (>10-fold of ULN) to be rare in seminoma but frequent in nonseminoma.
