1. Patients who fulfill the 2012 Systemic Lupus International Collaborating Clinics (SLICC) criteria or 2019 American College of Rheumatology/European League against Rheumatism classification criteria of Systemic Lupus Erythematosus.
2. Patients who is able to give informed consent to join the study.
You may not be if
\- Any patient with any autoimmune disease other than systemic lupus erythematosus.