The 'triple M' irAEs (myositis/myocarditis/MG): one of the rheumatic irAEs where autoAb are freq pos Nice systematic review: any autoAb+ 61% tested MG+ 59% tested MSA+ in 27% tested (18/67, 11 had myositis alone) @NilashaGhosh @lovetolearn27 @got_rheum #ACR20 ABST1574 @RheumNow https://t.co/utSj8yY0fd