This is an excerpt extracted from the PDF bookmark, using JPdfBookmarks:
Believe It or Not: Scientific Progress!?/44,Black,notBold,notItalic,closed,FitPage The Whole Is More Than the Sum of Its Parts: Gestalt Psychology/45,Black,notBold,notItalic,open,FitPage
What are the "closed" and "open" used for? It isn't explained in the manual.