Preferably, the modulation is induction of proliferation or {HEAD ~ differentiation} of {TAIL ~ a particular cell type} 
of
Preferably , the modulation is induction of proliferation or { HEAD ~ differentiation } of { TAIL ~ a particular cell type }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL