{HEAD ~ The high level expression} of the N protein allows {TAIL ~ incorporation} into a variety of antibody testing formats to produce the most efficient and accurate diagnostic tests 
allows
{ HEAD ~ The high level expression } of the N protein allows { TAIL ~ incorporation } into a variety of antibody testing formats to produce the most efficient and accurate diagnostic tests
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH