Defines what elements can occur within the <colgroup> element in NISO JATS tables (based on and easily converted to the XHTML 1.1 table model).
The NISO JATS table model parameter entity is used in the same way as the equivalent parameter entity in the XHTML 1.1 table model.
<!ENTITY % colgroup.content "( %col.qname; )*" >
( col )*
JATS-xhtml-table-1.mod