<type>Element</type><name>efficacy</name><comment>The element efficacy is a metadata element specifying the period of the efficacy modification.</comment>
<xsd:element name="efficacy" type="periodType"><xsd:annotation><xsd:documentation><type>Element</type><name>efficacy</name><comment>The element efficacy is a metadata element specifying the period of the efficacy modification.</comment></xsd:documentation></xsd:annotation></xsd:element>