1 Department of Endocrinology, Ashwin Speciality Hospital, Madurai, Tamil Nadu, India. Electronic address: ak_md2000@yahoo.com.
2 Department of Cornea, Aravind Eye Care Hospitals, Madurai, India.
3 Department of Pathology, Aravind Eye Care Hospitals, Madurai, India.
4 Department of Gastroenterology, Ashwin Speciality Hospital, Madurai, Tamil Nadu, India.
5 Medgenome Laboratories Ltd, Bangalore, India.
6 Wellcome-MRC Institute of Metabolic Science, University of Cambridge and NIHR Cambridge Biomedical Research Centre, Addenbrooke's Hospital, Cambridge, UK.