The assay is intended for {HEAD ~ use} in evaluating {TAIL ~ the excreta} of an animal subject 
in evaluating
The assay is intended for { HEAD ~ use } in evaluating { TAIL ~ the excreta } of an animal subject
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH