Author information DM Vasudevan MBBS MD FAMS FRCPath Distinguished Professor, Department of Biochemistry Chairman, PG Programs and Research College of Medicine Amrita Institute of Medical Sciences Kochi, Kerala, India Sreekumari S MBBS MD Formerly Professor and Head Department of Biochemistry Government Medical College Sree Gokulam Medical College and Research Foundation Thiruvananthapuram, Kerala, India Jubilee Mission Medical College and Research Institute Thrissur, Kerala, India Kannan Vaidyanathan MBBS MD Professor, Department of Biochemistry Head, Molecular Biology Amrita Institute of Medical Sciences Kochi, Kerala, India