“…Studies of AIHA in man and experimental mouse systems have provided evidence to support four major hypotheses on the cause ofthe autoimmunity (Dacie 1962, Isaacson 1967, Pirofsky 1968, Burnet 1969, 1972a, 1972b, Dacie & Woriledge 1969, Schubothe 1969). These are: 1) modification of erythrocyte antigens; 2) development of cross-reacting antibodies; i) emergence of for bidden elones of autoaggressive cells; and 4) abnormal T-cell function.…”