References
- Chitra S, Ashok L, Anand L, Srinivasan V, Jaynath V. Risk factors for oesophageal cancer in Coimbatore; Southern India; A hospital based case control study. Indian J Gastroenterol. 2004;23:19–21.
- Desai BP, Borges JE, Vohra GV. Carcinoma of esophagus in India. Indian J Gastroenterol. 1997;16:98–101.
- Sankaranarayanan R, Duffy SV, Padma Kumaray G, Nair SM, Day NE, Pandanabhan TK. Risk factors for cancer of the esophagus in Kerala, India. Indian J Cancer. 1991;49:485–9.
- Sehgal S, Kaul S, Gupta BB, Dhar MK. Risk factors and survival analysis of esophageal cancer in the population of Jammu, India. Indian J Cancer. 2012;49:245–50.
- Farin K, Graca MD, William FA. Patterns of cancer incidence, mortality and prevalence across five continents: Defining priorities to reduce cancer disparities in different geographic regions of the world. J Clin Oncol. 2006;24:2137–50.
- Parkin DM, Muir CS, Whelan SL, Gao YT, Ferlay J, Powell J. Cancer Incidence in Five Continents. VI. Lyon: International Agency for Research on Cancer; 1992. p. 102.
- Varghese C. Cancer prevention and control in India. Ministry of Health and Family Welfare. [Last accessed on 2012 Mar 12].
- Znaor A, Brennan P, Gajalakshmi V, Mathew A, Shanta V, Varghese C, et al. Independent and combined effects of tobacco smoking, chewing and alcohol drinking on the risk of oral, pharyngeal and esophageal cancers in Indian men. Int J Cancer. 2003;105:681–6.
- Christen AG, Swanson BZ, Glover ED, Henderson AH. Smokeless tobacco: The folklore and social history of snuffing, sneezing, dipping and chewing. J Am Dent Assoc. 1982;105:821–9.
- Phukan R, Ali M, Chetia C, et al. Betel nut and tobacco chewing: potential risk factors for cancer of the esophagus in Assam, India. Br J Cancer. 2001;85:661–667.