1. Clinical Immunology and Rheumatology Unit, Department of Internal MedicinePost Graduate Institute of Medical Education and Research Chandigarh India
2. Department of NephrologyPost Graduate Institute of Medical Education and Research Chandigarh India
3. Department of HistopathologyPost Graduate Institute of Medical Education and Research Chandigarh India
4. Department of Internal Medicine, Clinical Immunology and Rheumatology servicesPost Graduate Institute of Medical Education and Research Chandigarh India