{HEAD ~ The humanized antibody} or fragment 1, wherein said {TAIL ~ antibody} or fragment thereof does not induce antibody dependent cell mediated cytotoxicity and complement dependent cytotoxicity 
wherein
{ HEAD ~ The humanized antibody } or fragment 1 , wherein said { TAIL ~ antibody } or fragment thereof does not induce antibody dependent cell mediated cytotoxicity and complement dependent cytotoxicity
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH