More particularly, {HEAD ~ information} needed to provide an accurate assessment of data may require {TAIL ~ an analysis} of data from multiple sources 
require
More particularly , { HEAD ~ information } needed to provide an accurate assessment of data may require { TAIL ~ an analysis } of data from multiple sources
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH