data_QQQQ _audit_creation_method _iucr_compatibility_tag _journal_coden_ASTM _journal_paper_category _publ_requested_category _journal_coeditor_code _journal_techeditor_code _journal_year _journal_volume _journal_issue _journal_page_first _journal_page_last _journal_data_validation_number _publ_section_title_footnote _publ_author_footnote _publ_section_synopsis _publ_section_title _publ_contact_author_email _publ_author_name _publ_author_address _journal_date_recd_electronic _journal_date_accepted _journal_date_from_coeditor _publ_section_abstract _publ_section_comment _publ_section_introduction _publ_section_discussion