{HEAD ~ An assay} essentially following {TAIL ~ the procedure} set out in Cancer Research: 1662 1670, 1975 may be used to demonstrate inhibition of TPA induction of ODC by compounds of this invention 
{ HEAD ~ An assay } essentially following { TAIL ~ the procedure } set out in Cancer Research : 1662 1670 , 1975 may be used to demonstrate inhibition of TPA induction of ODC by compounds of this invention
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH