Figure 13
From: The method of Katharina Schroth - history, principles and current development
![Figure 13](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1748-7161-6-17/MediaObjects/13013_2011_Article_425_Fig13_HTML.jpg)
Franz Schroth, Katharina Schroth's husband, assisted in patient training regularly. [Historical picture from the picture database of Christa Lehnert-Schroth].