OS analysis based on differential expression of 8 snoRNAs in non-ALCL PTCL patients. (A) Heat map showing snoRNA expression in non-ALCL PTCL patients. Each column represents the expression level of a gene and each row a patient (diagnosis of each patient is depicted according to the color legend shown). Gene-expression levels are depicted according to the color scale shown. (B) OS comparison for patients overexpressing these snoRNAs (group 1) and other patients (group 2).