A preferred polyvalent agent is an IgM, and enhanced cell wounding and {TAIL ~ killing} can be provided by {HEAD ~ the addition} of a crosslinking agent 
A preferred polyvalent agent is an IgM , and enhanced cell wounding and { TAIL ~ killing } can be provided by { HEAD ~ the addition } of a crosslinking agent
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH