. "Any process involved with the carrying out of an immune response by a B cell, through, for instance, the production of antibodies or cytokines, or antigen presentation to T cells." . . . "B cell mediated immunity" . "B lymphocyte mediated immune effector process" . "B lymphocyte mediated immunity" . "B-cell mediated immune effector process" . "B-cell mediated immunity" . "B-lymphocyte mediated immune effector process" . "B-lymphocyte mediated immunity" . . . . . . .