<xsd:complexType name="ORU_R01.RESPONSE.CONTENT"> <xsd:sequence> <xsd:element ref="ORU_R01.PATIENT" minOccurs="0" maxOccurs="1" /> <xsd:element ref="ORU_R01.ORDER_OBSERVATION" minOccurs="1" maxOccurs="unbounded" /> </xsd:sequence> </xsd:complexType>