Fig. 1.
Subgroups of IIM according to the 2017 EULAR/ACR classification criteria [7]. *The PM subset includes immune-mediated necrotizing myopathies (IMNM). PM, polymyositis; IBM, inclusion body myositis; ADM, amyopathic dermatomyositis; DM, dermatomyositis; JDM, juvenile dermatomyositis