Arghya Chattopadhyay1, Aman Sharma2, Kirti Gupta3, Sanjay Jain1. 1. Clinical Immunology and Rheumatology Unit, Department of Internal Medicine, and Post Graduate Institute of Medical Education and Research, Chandigarh, Punjab, India. 2. Clinical Immunology and Rheumatology Unit, Department of Internal Medicine, and Post Graduate Institute of Medical Education and Research, Chandigarh, Punjab, India. Electronic address: amansharma74@gmail.com. 3. Department of Histopathology, and Post Graduate Institute of Medical Education and Research, Chandigarh, Punjab, India.