Non limiting {TAIL ~ examples} of such molecules include, but are not limited to, those complementary to a nucleotide sequence essential for production of {HEAD ~ 251P5G2} or a ribozyme effective to lyse 251P5G2 mRNA 
Non limiting { TAIL ~ examples } of such molecules include , but are not limited to , those complementary to a nucleotide sequence essential for production of { HEAD ~ 251P5G2 } or a ribozyme effective to lyse 251P5G2 mRNA
OTH OTH 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 HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH