1 Department of Endocrinology & Metabolism, Medical College & Hospital, Kolkata, India.
2 Department of General Medicine, Burdwan Medical College & Hospital, Burdwan, India.
3 Department of Neuromedicine, Bangur Institute of Neurosciences, IPGMER & SSKM Hospital, Kolkata, India.
4 Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom; National Institute for Health Research Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom. Electronic address: righ@soton.ac.uk.