Medicine and Surgery, Government Medical College Surat, Surat, IND. Internal Medicine, Dayanand Medical College and Hospital, Ludhiana, IND. Internal Medicine, Narendra Modi Medical College, Ahmedabad, IND. Internal Medicine, Government Medical College, Baroda, IND. Medicine, University College of Medical Sciences, New Delhi, IND. Internal Medicine, Tianjin Medical University, Tianjin, CHN. Nephrology, Kaiser Permanente, Stockton, USA. Pediatrics, Southern Illinois University School of Medicine, Springfield, USA. Internal Medicine, Penn State Hershey Medical Center, Hershey, USA.