NCBI Book DTD and NCBI Collection DTD Tag Library version 2.3
Digital Archive of Journal Articles
National Center for Biotechnology Information (NCBI)
National Library of Medicine (NLM)
Should this unit be processed by indexing software or human indexers? The default is to be indexed (value “true”). Indexing is often turned off (value “false”) for bibliographies and other references, as opposed to the body of a document.