1. Internal Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
2. Internal Medicine, Shri Ram Murti Smarak Institute of Medical Sciences, Bareilly, Uttar Pradesh, India
3. Internal Medicine, Government Medical College, Amritsar, India
4. Department of Internal Medicine, Cleveland Clinic Akron General, Akron, Ohio USA
5. Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania USA
6. Nephrology, The Permanente Medical Group, Stockton, Northern California, USA