External module in the base Suite that declares the section-level elements in this Tag Set. These elements are used in the
parameter entity %sec.class;.
Model
<!ENTITY % section.ent
PUBLIC
"-//NLM//DTD JATS (Z39.96) JATS DTD Suite Section Class Elements v1.1d2 20140930//EN"
"JATS-section1.ent" >