{HEAD ~ The use} of {TAIL ~ colloidal metal labels} in a resolubilizable form provides extremely rapid kinetics of labeling 
{ HEAD ~ The use } of { TAIL ~ colloidal metal labels } in a resolubilizable form provides extremely rapid kinetics of labeling
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH