Proliferative responses of MCs from AIHA case no. 6 against the panel of 42 peptides corresponding to the Rh D protein on two occasions (A and B) 3 months apart. The hemoglobin level of the patient on each occasion was 10.0 and 10.1 g/dL, respectively, and the treatment was unchanged (10 mg prednisolone daily). The dashed line indicates the level of proliferation taken as representing a positive response (the higher of SI = 3 or CPM = 500).