| Elements |
abbrev, award-group, award-id, bio, chem-struct, collab, conference, contrib, custom-meta, element-citation, email, ext-link, funding-source, funding-statement, graphic, inline-graphic, inline-supplementary-material, institution, issue-id, license, long-desc, media, mixed-citation, named-content, nlm-citation, product, pub-id, related-article, related-object, self-uri, supplementary-material, uri, volume-id |