1. Preventive medicine resident, University of Mississippi Medical Centre, Jackson, MS;
2. Department of Medicine, Sikkim Manipal University, Sikkim Manipal Institute of Medical Sciences, Sikkim, India
3. Department of Medicine,G.M.E.R.S. Medical College & Hospital, Gotri, Vadodara, India
4. Department of Medicine, Tianjin Medical University, Tianjin, China
5. Department of Medicine, Government Medical College, Jammu, India
6. Department of Medicine, Government Medical College, Patiala, India
7. Department of Medicine, Penn State Milton S. Hershey Medical Center, PA.