Median IL15 gene expression levels were similar in PBMCs from SJS/TEN patients and healthy donors (Supplementary Materials Figure S3A), although a trend to higher mean values was found in SJS/TEN patients (Rq IL15 29.96 ± 79.0 vs. 8.3 ± 9.63). This evidence concerns the gene IL15 and Schwartz-Jampel syndrome.