This is the "Navigation_tree_lc" template. It should be called in the following format:

{{Navigation_tree_lc
|TopContext=
|SuperContext=
|TitleSuperContext=
|ProcessPreload=
|ProcessName=
|ContentPreload=
|ContentName=
}}

example call: {{Navigation_tree_lc|TopContext=PR_00019
                                  |SuperContext=PR_00019
                                  |TitleSuperContext=DZH Overleven met kanker
                                  |ProcessPreload=SSM proces voorbeeld
                                  |ProcessName=aanpak
                                  |ContentPreload=SSM content voorbeeld
                                  |ContentName=resultaten}}

Edit the page to see the template text.