E_CNVMBTTREE STRUCTURE CNVMBTTREE OPTIONAL
I_CNVMBTTREE STRUCTURE CNVMBTTREE OPTIONAL
EXT_CNVMBTTREE STRUCTURE CNVMBTTREE OPTIONAL
T_CNVMBTTREE STRUCTURE CNVMBTTREE
ET_TREE STRUCTURE CNVMBTTREE
ET_CNVMBTTREE STRUCTURE CNVMBTTREE
ET_TREE STRUCTURE CNVMBTTREE OPTIONAL
IT_TREE STRUCTURE CNVMBTTREE OPTIONAL