mary"
                        value="#{patientInvestigation.billItem.bill.deptId}" 
                        action="#{billSearch.navigateToViewOpdBill()}">
                        <f:setPropertyActionListener value="#{patientInvestigation.billItem.bill}" target="#{billSearch.bill}"/>
                    </p:commandLink>
                    <br/>
                    <h:outputLabel value="#{patientInvestigation.billItem.bill.createdAt}">
                        <f:convertDateTime pattern="#{sessionController.