1. Department of Cardiology , Madras Medical College , Chennai , Tamilnadu , India
2. General Medicine , Apollo Speciality Hospital , Chennai , Tamilnadu , India
3. Department of General Medicine , Government Villupuram Medical College , Mundiyambakkam , Tamilnadu , India
4. Department of Physiology , All India Institute of Medical Sciences – Bibinagar , Hyderabad , Telangana , India
5. Department of General Medicine , Karpaga Vinayaga Institute of Medical Sciences and Research Center , Maduranthgam , Tamilnadu , India
6. Department of General Medicine , All India Institute of Medical Sciences – Bibinagar , Hyderabad , Telangana , India