HLA-B and gout: There were eight economic evaluation studies of HLA-B*58:01 screening before prescribing allopurinol in gout patients to prevent SJS/TEN and DRESS) that were performed in China (1 study) [41], Malaysia (1 study) [40], US (1 study) [44], Taiwan (1 study) [43], UK (1 study) [42], Singapore (1 study) [46], Korea (1 study) [45], and Thailand (1 study) [47] from 2014 to 2018.