1. Departments of Radiodiagnosis, Lady Hardinge Medical College and Associated Smt. Sucheta Kriplani and Kalawati Hospitals, New Delhi,India
2. Departments of Radiodiagnosis, Employees’ State Insurance Corporation Model Hospital, Gurgaon, Haryana,India
3. Departments of Radiodiagnosis, Dr. Ram Manohar Lohia Hospital and PGIMER, New Delhi, India