anchor.diff:  
   <ui:formGuide ignoreUndo="true" ignoreUndoOnLoad="true">
       <ui:observe elementIds="${component}_familyStatus" forValue="Family$"/>
  -    <ui:disable elementIds="${component}_familyStudy"/>
       <ui:enable elementIds="${component}_relationToProband"/>
   	<ui:enable elementIds="${component}_probandCandidate"/>
  -	<ui:enable elementIds="${component}_twinZygosity"/>
  +	<ui:enable elementIds="${component}_twin"/>
   	<ui:enable elementIds="${component}_projSiteId"/>
       <ui:enable elementIds="${component}_relationNotes"/>  
       <ui:setValue elementIds="${component}_familyStudy" value=""/>
  -</ui:formGuide>
  -
  -<ui:formGuide ignoreUndo="true" ignoreUndoOnLoad="true">
  -    <ui:observe elementIds="${component}_familyStatus" forValue="Family Study"/>
  -    <ui:enable elementIds="${component}_familyStudy"/>
  -    <ui:enable elementIds="${component}_relationToProband"/>
  -	<ui:enable elementIds="${component}_probandCandidate"/>
  -	<ui:enable elementIds="${component}_twinZygosity"/>
  -	<ui:enable elementIds="${component}_projSiteId"/>
  -    <ui:enable elementIds="${component}_relationNotes"/>  
   </ui:formGuide>
   
   <ui:formGuide>
  
positive.code: <c:if test="${componentMode != 'vw'}">
  <ui:formGuide ignoreUndo="true" ignoreUndoOnLoad="true">
      <ui:observe elementIds="${component}_familyStatus" forValue="Individual|^$"/>
  	<ui:disable elementIds="${component}_familyStudy"/>
  	<ui:disable elementIds="${component}_relationToProband"/>
  	<ui:disable elementIds="${component}_familyId"/>
  	<ui:disable elementIds="${component}_probandCandidate"/>
  	<ui:disable elementIds="${component}_twinZygosity"/>
  	<ui:disable elementIds="${component}_projSiteId"/>
  	<ui:disable elementIds="${component}_relationNotes"/>
  	<ui:setValue elementIds="${component}_familyStudy" value=""/>
      <ui:setValue elementIds="${component}_relationToProband" value=""/>
  	<ui:setValue elementIds="${component}_probandCandidate" value=""/>
  	<ui:setValue elementIds="${component}_twinZygosity" value=""/>
  	<ui:setValue elementIds="${component}_projSiteId" value=""/>
      <ui:setValue elementIds="${component}_relationNotes" value=""/>
      <ui:setValue elementIds="${component}_familyId" value=""/>
  
negative.code:   <page:param name="sectionNameKey"></page:param>
    <page:param name="quicklinkPosition">top</page:param>
  	<tags:createField property="familyStatus" component="${component}" entityType="patient"/>
  	<tags:createField property="relationToProband" component="${component}" entityType="patient"/>
  	<tags:createField property="familyId" component="${component}" entityType="patient"/>
  	<tags:createField property="probandCandidate" component="${component}" entityType="patient"/>
  	<tags:createField property="twin" component="${component}" entityType="patient"/>
  	<tags:createField property="twinZygosity" component="${component}" entityType="patient"/>
  	<tags:createField property="twinId" component="${component}" entityType="patient"/>
  	<tags:createField property="projSiteId" component="${component}" entityType="patient"/>
  