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