It has been established elsewhere that increases in {HEAD ~ polyamine synthesis} can be correlated or associated with {TAIL ~ cellular proliferation} 
correlated with
It has been established elsewhere that increases in { HEAD ~ polyamine synthesis } can be correlated or associated with { TAIL ~ cellular proliferation }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL