{HEAD ~ The FGFR1 expression enhancer} is preferably {TAIL ~ a substance} that enhances the expression of FGFR1 on cancer cells  
is preferably
{ HEAD ~ The FGFR1 expression enhancer } is preferably { TAIL ~ a substance } that enhances the expression of FGFR1 on cancer cells
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH