1 Department of Emergency and Critical Care Medicine, Sri Gokulam Hospitals and Research Institute, Salem, Tamil Nadu, India.
2 Department of Emergency Medicine, Christian Medical College and Hospital, Vellore, Tamil Nadu, India.
3 Department of Emergency Medicine, Meenakshi Mission Hospital and Research Centre, Madurai, Tamil Nadu, India.
4 Department of Forensic Medicine and Toxicology, Employees State Insurance Corporation Medical College and Post Graduates Institute of Medical Science and Research, Bangalore, Karnataka, India.
5 Department of Internal medicine, Chennai Medical College and Research Center, Irungalur, Trichy, Tamil Nadu, India.