XmlmmCIF equivalent: journal_index Data items in the JOURNAL_INDEX category are used to list terms employed in generating the journal indexes. Normally the creator of a data block will not specify these data items. XmlmmCIF equivalent: journal_index/subterm Journal index data items are defined by the journal staff. XmlmmCIF equivalent: journal_index/type Journal index data items are defined by the journal staff. XmlmmCIF equivalent: journal_index/term Journal index data items are defined by the journal staff.