English to Spanish Medical Medical: Pharmaceuticals

Can anyone help me find the Spanish translation for "heading data"? I don't have much context since it only appears in the title of a table: ANIMAL HEADING DATA - DOSE GROUP X – RECOVERY ANIMALS // The same table also includes these headings: ANIMAL SEX - DEFINED AND FINAL STATE OF NECROPSY - TEST DAYS - FIRST AND LAST DAY UNDER TEST

I found it in a similar context:
http://www.health.state.mn.us/divs/eh/hazardous/28dayappendi...
INDIVIDUAL ANIMAL DATA TABLE OF
INDIVIDUAL MICROSCOPIC FINDINGS
ANIMAL HEADING DATA
DOSE GROUP 01
TEXT OF GROSS AND MICROSCOPIC FINDINGS
DOSE GROUP

Could it be leading/main data? Or does it refer to something else?

Thanks in advance!