The publisher regrets that the figures 2, 3, 4 and 5 were missing from the article, these have now been inserted below.
In Situ distribution of bipolar atrial EKG-electrodes.
Figure 2:

In Situ distribution of bipolar atrial EKG-electrodes.

Resection of right atrial appendage.
Figure 3:

Resection of right atrial appendage.

Resection of left atrial appendage.
Figure 4:

Resection of left atrial appendage.

Pulmonary vein isolation.
Figure 5:

Pulmonary vein isolation.