Defined in file macro.asn
C++ class: CMolinfo_field_pair
Molinfo-field-pair ::= CHOICE {
molecule Molinfo-molecule-pair ,
technique Molinfo-technique-pair ,
completedness Molinfo-completedness-pair ,
mol-class Molinfo-mol-class-pair ,
topology Molinfo-topology-pair ,
strand Molinfo-strand-pair }