CD8A and type 1 diabetes mellitus: We found that the frequencies of circulating PPI3–11‐ and InsB15–24‐specific CD8+ T cells were similar in subjects with type 1 diabetes and control subjects (Fig. 2b), and the subject groups did not differ significantly in terms of the phenotype of PPI3–11‐ or InsB15–‐24‐specific CD8+ T cells (Fig. 2c,d).