1. Guha Majumdar DN, Haque R, Ghosh N, De BK, Santra A, Chakraborty D, Smith AH (1998) Arsenic levels in drinking water and its prevalence of skin lesions in West Bengal. Int J Epidemiol 27:871–877
2. http://savethewater.org/2015/01/09/high-fluoride-contamination-still-present-19-indian-states-ministry-report/
3. https://medium.com/@fluorideindia/the-state-of-fluoride-in-india-83d6b4373e87
4. Saha KC (2003) Saha’s grading of arsenicosis progression and treatment. In: Ecl V, Chappell WR, Abernathy W, Calderon RL, Thomas DJ (eds) Arsenic exposure and health effect. Elsevier, London, pp 391–414