                               inputStyleClass="form-control"
                                pattern="dd MMMM yy - hh:mm a" >
                            </p:calendar>
                            <p:spacer width="10"></p:spacer>
                            <p:commandButton 
                                class="w-100 my-1" 
                                id="btnCollected" 
                                ajax="false" 
                                actionListener="#{patientInvestigationController.listPa