Study design metadata

In this section:

• IRV_STUDYVERSIONS
  
• IRV_STUDYVERSION_VISITS
  
• IRV_STUDYVERSION_FORMS
  
• IRV_FORM_REVS
  
• IRV_SECTION_REVS
  
• IRV_ITEM_REVS
  
• IRV_ITEMSET_REVS
  
• IRV_CONTROL_REVS
  
• IRV_MD_FORMS_CONTROLS
  
• IRV_FORM_ASSOC
  
• IRV_FORM_ASSOC_HISTORY
  
• IRV_CUR_VISIT
  
• IRV_SITE_STUDYVERSION_TIMES
  
• IRV_VISIT_HELPTEXT
  
• IRV_VISIT_NAME
  
• IRV_VISIT_REVS