Journal of Environmental and Public Health [10] A. Singh and S. S. Jolly, “Chronic toxic eﬀects on the skeletal system,” in Fluorides and Human Health, WHO Monograph Series no. 59, pp. 238–249, WHO, Geneva, Switzerland, 1970. [11] Y. Wang, Y. Yin, L. A. Gilula, and A. J. Wilson, “Endemic ﬂu- orosis of the skeleton: radiographic features in 127 patients,” American Journal of Roentgenology, vol. 162, no. 1, pp. 93–98, 1994. [12] T. Watanabe, T. Kondo, S. Asanuma, et al., “Skeletal ﬂuorosis from indoor burning of coal in Southwestern China,” Fluoride, vol. 33, no. 3, pp. 135–139, 2000. [13] C. Zhu, G. Bai, X. Liu, and Y. Li, “Screening high-ﬂuoride and high-arsenic drinking waters and surveying endemic ﬂuorosis and arsenism in Shaanxi Province in Western China,” Water Research, vol. 40, no. 16, pp. 3015–3022, 2006. [14] H. Daijei, “X-ray analysis of 34 cases of foodborne skeletal ﬂuorosis,” Fluoride, vol. 14, no. 2, pp. 51–55, 1981. [15] K. A. V. R. Krishnamachari, “Skeletal ﬂuorosis in humans: a review of recent progress in the understanding of the disease,” Progress in Food and Nutrition Science, vol. 10, no. 3-4, pp. 279–314, 1986. [16] A. L. Khandare, R. Harikumar, and B. Sivakumar, “Severe bone deformities in young children from vitamin D deﬁciency and ﬂuorosis in Bihar-India,” Calciﬁed Tissue International, vol. 76, no. 6, pp. 412–418, 2005. [17] H. Zhang, Q. Cai, S. Fang, et al., “Study on epidemic factors of skeletal ﬂuorosis in children and adolescents in Guizhou Province,” Chinese Journal of Epidemiology, vol. 16, no. 1, pp. 1–4, 1997 (Chinese). [18] B. Zheng, D. Wu, B. Wang, et al., “Fluorosis caused by indoor coal combustion in China: discovery and progress,” Environmental Geochemistry and Health, vol. 29, no. 2, pp. 103–108, 2007. [19] S. Dai, D. Ren, and S. Ma, “The cause of endemic ﬂuorosis in western Guizhou Province, Southwest China,” Fuel, vol. 83, no. 14-15, pp. 2095–2098, 2004. [20] WHO, Guidelines for Drinking-Water Quality, WHO, Geneva, Switzerland, 2004. [21] X. Chen, Y. Wang, F. Li, et al., “Skeletal radiographic appearances of high aluminum ﬂuorosis caused by domestic coal fuel (analysis of 39 cases),” Chinese Journal of Radiology, vol. 30, no. 4, pp. 257–260, 1996 (Chinese). [22] H. E. S. Mestl, K. Aunan, H. M. Seip, S. Wang, Y. Zhao, and D. Zhang, “Urban and rural exposure to indoor air pollution from domestic biomass and coal burning across China,” Science of the Total Environment, vol. 377, no. 1, pp. 12–26, 2007. [23] W. Lian-Fang and H. Jian-Zhong, “Outline of control practice of endemic ﬂuorosis in China,” Social Science and Medicine, vol. 41, no. 8, pp. 1191–1195, 1995. 7