<xsd:complexType name="PPT_PCL.CONTENT"> <xsd:sequence> <xsd:element ref="MSH" minOccurs="1" maxOccurs="1" /> <xsd:element ref="MSA" minOccurs="1" maxOccurs="1" /> <xsd:element ref="ERR" minOccurs="0" maxOccurs="1" /> <xsd:element ref="QRD" minOccurs="1" maxOccurs="1" /> <xsd:element ref="PPT_PCL.PATIENT" minOccurs="1" maxOccurs="unbounded" /> </xsd:sequence> </xsd:complexType>