1. 1) Census of India. Office of the census control and registrar general of India. http://www.censusindia.gov.in/ Census_Data_2001/India_at_glance/
2. 2) Park K: Epidemiology of chronic non-communicable diseases and conditions. In Park's Textbook of Preventive and Social Medicine. 19th edition. Banarasidas Bhanot Publishers. Jabalpur, India, 2007.
3. 3) Eicher AD, Crofts N, Benjamin S, Deutschmann P, Rodger AJ: A certain fate: spread of HIV among young injecting drug users in Manipur, northeast India. AIDS Care 12: 497-504, 2000.
4. 4) Balasubramanyan M, Chaudri S: A case of pulmonary mucormycosis. Indian J Path Bacteriol 6: 60-62, 1963.
5. 5) Diwakar A, Dewan RK, Chowdhury A, Randhawa HS, Khanna G, Gaur SN: Zygomycosis - a case report and overview of the disease in India. Mycoses 50; 247-254, 2007.