Cell Surface Marker Expression in Autoimmune Diseases

Inclusion Criteria

• •1. Male or female participants 19 years of age or older.
• •2. Participant or legal surrogate able and willing to provide written, informed consent.
• •3. Participant is, or has been undergoing care for one of the specified diseases in a participating centre with a confirmed clinical diagnosis of the specified disease.
• •4. Participant has or will provide the relevant peripheral blood (required) and normal practice tissue specimens (if available).
• •5. Participant has one of the following target auto-immune or inflammatory diseases diagnosed according to local clinical practice guidelines:
• •1. Crohn's Disease
• •2. Inflammatory myositis
• •3. Multiple sclerosis
• •4. Sjogren's syndrome
• •5. Systemic lupus erythematosus
• •6. Systemic sclerosis
• •7. Ulcerative colitis