Ferritin levels in women with low VWF and pregnancy related changes in plasma VWF levels. (A) Scatter dot plot of lowest recorded ferritin (n = 103) with the median (21.1 μg/L) indicated by the red bar and lower limit of the normal reference range (23.0-393 μg/L) by the dotted line. (B-C) Plasma VWF:Ag levels (B) and VWF:RCo levels (C) at baseline and during pregnancy in a subgroup of 32 women (38 pregnancies). Normal reference range indicated by dotted lines.