It is a further object of the invention to provide an assay vehicle suitable for {HEAD ~ use} in an animal litter or {TAIL ~ bedding} 
in
It is a further object of the invention to provide an assay vehicle suitable for { HEAD ~ use } in an animal litter or { TAIL ~ bedding }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL