The method of this invention takes advantage of the method for identifying {HEAD ~ nucleic acid ligands} referred to as {TAIL ~ SELEX} 
referred to as
The method of this invention takes advantage of the method for identifying { HEAD ~ nucleic acid ligands } referred to as { TAIL ~ SELEX }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL