The study encompassed 52 healthy donors and 79 major IIM subtypes, including DM, ASS, IMNM and MSA-defined subtypes, such as anti-Mi2+, anti-MDA5+, anti-TIF1γ+, anti-Jo1+, anti-PL7+, anti-PL12+, anti-EJ+ and anti-SRP+. The gene discussed is IFIH1; the disease is dermatomyositis.