{HEAD ~ Products} generated by the 3′ and 5′ RACE procedures can be combined to generate {TAIL ~ full length cDNAs} (Frohman and Martin Techniques 1:165) 
combined to generate
{ HEAD ~ Products } generated by the 3′ and 5′ RACE procedures can be combined to generate { TAIL ~ full length cDNAs } ( Frohman and Martin Techniques 1:165 )
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH