1. Ferri CP, Sousa R, Albanese E, Ribeiro WS, Honyashiki M. The growth of dementia. In: Prince M, Jackson J, editors. World Alzheimer report-2009 Executive summary, Alzheimer Disease International; 2009. p. 1-21.
2. Bird TD, Miller BJ. Alzheimer′s disease and other dementias.In: Kasper DL, Fauci AS, Longo DL, Braunwald E, Hauser SL, Jameson JL, editors. Harrison′s principles of Internal Medicine. 16 th ed. New Delhi:McGraw-Hill; 2005. p. 2393.
3. Sharma PV. Dravyagunavidnyan Part 1, Shashtamadhyay, Varanasi: Chaukhamba Bharti Academy; 1998. p. 48.
4. Tripathi B. SharangdharSamhita, Purvakhanda, 4/13, Varanasi: ChaukhambaSurbharati Prakashan; 2001. p. 76.
5. Nishteshwar K, Vidyanath R. Sahastrayogam. GutikaPrakarana. Varanasi: Chowkhamba Sanskrit Series Office; 2006. p. 68.