<xs:simpleType name="DecimalPrimitiveType">
        <xs:annotation>
            <xs:documentation>HL7 FHIR solution for precision sensitive numeric datatype</xs:documentation>
        </xs:annotation>
        <xs:restriction base="xs:string">
            <xs:pattern value="-?(0|[1-9][0-9]*)((\.|,)[0-9]+)?([eE][+-]?[0-9]+)?"/>
        </xs:restriction>
    </xs:simpleType>

    <xs:complexType name="PQType">
        <xs:sequence>
            <xs:element name="value" type="tns:DecimalPrimitiveType"/>
            <xs:element name="unit" type="xs:string"/>
        </xs:sequence>
    </xs:complexType>