NCBI element boxed-text

Abstract	false (This can be used in an instance)
Nillable	false (Instance values cannot use xsi:nil)
Declared Namespaces	xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance xmlns:xlink=http://www.w3.org/1999/xlink xmlns:xs=http://www.w3.org/2001/XMLSchema xmlns:mml=http://www.w3.org/1998/Math/MathML

<xs:element name="boxed-text">
    <xs:complexType>
        <xs:sequence>
            <xs:element minOccurs="0" maxOccurs="unbounded" ref="object-id"/>
            <xs:sequence>
                <xs:element minOccurs="0" ref="sec-meta"/>
                <xs:element minOccurs="0" ref="label"/>
                <xs:element minOccurs="0" ref="title"/>
                <xs:choice minOccurs="0" maxOccurs="unbounded">
                    <xs:element ref="array"/>
                    <xs:element ref="boxed-text"/>
                    <xs:element ref="chem-struct"/>
                    <xs:element ref="chem-struct-wrapper"/>
                    <xs:element ref="fig"/>
                    <xs:element ref="fig-group"/>
                    <xs:element ref="graphic"/>
                    <xs:element ref="media"/>
                    <xs:element ref="preformat"/>
                    <xs:element ref="supplementary-material"/>
                    <xs:element ref="table-wrap"/>
                    <xs:element ref="table-wrap-group"/>
                    <xs:element ref="disp-formula"/>
                    <xs:element ref="p"/>
                    <xs:element ref="def-list"/>
                    <xs:element ref="list"/>
                    <xs:element ref="tex-math"/>
                    <xs:element ref="mml:math"/>
                    <xs:element ref="related-article"/>
                    <xs:element ref="disp-quote"/>
                    <xs:element ref="speech"/>
                    <xs:element ref="statement"/>
                    <xs:element ref="verse-group"/>
                </xs:choice>
                <xs:element minOccurs="0" maxOccurs="unbounded" ref="sec"/>
                <xs:choice minOccurs="0" maxOccurs="unbounded">
                    <xs:element ref="fn-group"/>
                    <xs:element ref="glossary"/>
                    <xs:element ref="ref-list"/>
                </xs:choice>
            </xs:sequence>
            <xs:choice minOccurs="0" maxOccurs="unbounded">
                <xs:element ref="attrib"/>
                <xs:element ref="copyright-statement"/>
                <xs:element ref="permissions"/>
            </xs:choice>
        </xs:sequence>
        <xs:attribute name="id" type="xs:ID"/>
        <xs:attribute name="position" default="float">
            <xs:simpleType>
                <xs:restriction base="xs:token">
                    <xs:enumeration value="anchor"/>
                    <xs:enumeration value="float"/>
                    <xs:enumeration value="margin"/>
                </xs:restriction>
            </xs:simpleType>
        </xs:attribute>
        <xs:attribute ref="xml:lang"/>
        <xs:attribute name="content-type"/>
    </xs:complexType>
</xs:element>

element {}boxed-text

Source