"Immunologic Factor"^^ . "An antibody that prevents some reaction from taking place, for example one antibody competing with another for a cell surface receptor.NCIOn-line Medical Dictionary" . "Blocking AntibodyPTNCI" . "C17898"^^ . . "Blocking Antibody"^^ . . "Blocking Antibody"^^ . "C0282682"^^ . . . "Blocking_Antibody"^^ .