References:
1. Bonini S, Sacchetti M, Mantelli F, Lambiase A. Clinical grading of vernal keratoconjunctivitis. Curr Opin Allergy Clin Immunol2007;7 :436–441.
2. Woodcock J. Sphingosine and ceramide signalling in apoptosis. IUBMB Life. 2006;58 :462–466.
3. Pralhada Rao R, Vaidyanathan N, Rengasamy M, Mammen Oommen A, Somaiya N, Jagannath MR. Sphingolipid Metabolic Pathway: An Overview of Major Roles Played in Human Diseases. J Lipids2013;2013 :1–12.
4. Newton J, Lima S, Maceyka M, Spiegel S. Revisiting the sphingolipid rheostat: Evolving concepts in cancer therapy. Exp. Cell Res. 2015;333 :195–200.
5. Gurumurthy S, Iyer G, Srinivasan B, Agarwal S, Angayarkanni N. Ocular surface cytokine profile in chronic Stevens- Johnson syndrome and its response to mucous membrane grafting for lid margin keratinisation. 2018;2 :169–176.
6. Aluru Venkata Saijyothi, Narayanasamy Angayarkanni, Chandran Syama, Tatu Utpal, Agarwal Shweta, Srinivasan Bhaskar, Iyer Krishnan Geetha, Pillai S. Vinay, Maruthamuthu Thennarasu, Rajappa M. Sivakumar PP. Two dimensional electrophoretic analysis of human tears : Collection method in dry eye syndrome. Electrophoresis 2010;31 :3420–3427.