Published studies had documented a strong association between the carriage of HLA-B*15:02 allele and risk of CBZ-induced SJS/TEN among Han Chinese in Taiwan, Hong Kong, Malays, Indians, and Thais (Chung et al., 2004; Man et al., 2007; Locharernkul et al., 2008; Mehta et al., 2009; Chang et al., 2011). This evidence concerns the gene HLA-B and toxic epidermal necrolysis.