IFNG and vitiligo: Previous studies showed that the ratio of IFN-γ:IL-10 is considered as a meaningful marker to define the disease severity in pulmonary or coronary heart disease and to identify the high-risk individuals from unaffected sibs of patients with nonsegmental vitiligo.78-80 Here, we identified a model fitted by levels of serum IFN-γ and IL-10 to evaluate STdif, indicating the degree of autistic severity and therapeutic outcomes of stem cells.