Naik Bijaya Nanda, Reddy Mahendra M, Kanungo Srikanta, Kar Sitanshu Sekhar
Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
J Family Med Prim Care. 2016 Jul-Sep;5(3):741-742. doi: 10.4103/2249-4863.197278.