Defined in file cdd.asn
C++ class: CCdd_pref_nodes
Cdd-pref-nodes ::= SEQUENCE {
preferred-nodes Cdd-org-ref-set,
model-organisms Cdd-org-ref-set OPTIONAL,
optional-nodes Cdd-org-ref-set OPTIONAL,
description Cdd-pref-node-descr-set OPTIONAL
}