According to the second scenario, AIHA was more common in SLE patients positive for IgG aCL and IgM aCL but less for IgG aβ2GPI: AIHA was also more common in LA positive SLE patients with no heterogeneity as in the two complementary studies assessing the relation between DAT and LA. The gene discussed is CD40LG; the disease is systemic lupus erythematosus.