Defined in file entrez2.asn C++ class: CEntrez2_hier_node Entrez2-hier-node ::= SEQUENCE { -- for hierarchical index cannonical-form VisibleString , -- the official name lineage-count INTEGER , -- number of strings in lineage lineage SEQUENCE OF Entrez2-term OPTIONAL , -- strings up the lineage child-count INTEGER , -- number of children of this node children SEQUENCE OF Entrez2-term , -- the children is-ambiguous BOOLEAN OPTIONAL } -- used for hierarchy only