<xsd:complexType name="ORU_R01.CONTENT"> <xsd:sequence> <xsd:element ref="MSH" minOccurs="1" maxOccurs="1" /> <xsd:element ref="ORU_R01.PATIENT_RESULT" minOccurs="1" maxOccurs="unbounded" /> <xsd:element ref="DSC" minOccurs="0" maxOccurs="1" /> </xsd:sequence> </xsd:complexType>