The systemic autoimmune rheumatic diseases (SARD) are a group of systemic autoimmune diseases that include: Rheumatoid Arthritis (RA), Systemic Lupus Erythematosus (SLE) (and subsets of Lupus), Sjögren’s syndrome (SjS), Systemic Sclerosis (SSc), Polymyositis (PM) and Dermatomyositis (DM).