Correction to:

Chapter 3 in: P. Zamboni et al. (eds.), Saphenous Vein-Sparing Strategies in Chronic Venous Disease, https://doi.org/10.1007/978-3-319-70638-2_3

In the original version of Chapter 3, part images (a & b) in figure 3.21 had been swapped and placed incorrectly in the proofs. The part images (a & b) have been corrected.