The invention can be used to construct {HEAD ~ tests} using a number of formats, labeling methods, category binding molecules, and {TAIL ~ detection methods} 
using
The invention can be used to construct { HEAD ~ tests } using a number of formats , labeling methods , category binding molecules , and { TAIL ~ detection methods }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL