TNFSF13B and systemic lupus erythematosus: The presence of the rs10181656(G) signal transducer and activator of transcription factor 4 (STAT-4) allele or the prevalence of the minor A allele and the AA genotype of the rs12583006 B-cell activating factor (BAFF) variant conferred increased susceptibility for arterial events and ischemic cerebrovascular disease in the context of SLE.