Number of pages in a printed book or book component; by convention, each page or partial page is counted as one. Electronic documents do not traditionally have page counts.
Many elements in this Suite were created explicitly for import conversion, that is, so that the intellectual work of tagging done by publishers would not be discarded when they converted material from another tag set to the NCBI Book Tag Sets. The count elements are a perfect example of this rationale; they are conversion elements and should only be tagged if present in the original source.
The count elements are modeled as EMPTY elements (that is, elements that have no content and store their real values in one or more attributes) because the majority of journal and book tag sets that were examined in the course of preparing this DTD used this mechanism, an inheritance of the older MAJOUR-header DTD.
<!ELEMENT page-count EMPTY >
This is an EMPTY element
<book> <book-meta> <book-id pub-id-type="other">handbook</book-id> <book-title-group> <book-title>The NCBI Handbook</book-title> </book-title-group>... <counts> <fig-count count="98"/> <table-count count="40"/> <equation-count count="0"/> <ref-count count="115"/> <page-count count="532"/> <word-count count="149852"/> </counts> </book-meta> <book-front>...</book-front> <body>...</body> <back>...</back> </book>