In {TAIL ~ addition}, {HEAD ~ novel antibody gene sequences} can be obtained by methods known to those skilled in the art 
In
In { TAIL ~ addition } , { HEAD ~ novel antibody gene sequences } can be obtained by methods known to those skilled in the art
REL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH