The humanized anti CD74 antibody or fragment 28, wherein {HEAD ~ the cytotoxic agent} is a drug or {TAIL ~ toxin} 
is
The humanized anti CD74 antibody or fragment 28 , wherein { HEAD ~ the cytotoxic agent } is a drug or { TAIL ~ toxin }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL