The ability of the selected peptides or selected modified peptides to stimulate {HEAD ~ human T cells} is then determined {TAIL ~ as described herein} 
is determined
The ability of the selected peptides or selected modified peptides to stimulate { HEAD ~ human T cells } is then determined { TAIL ~ as described herein }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL