1. Xiang Q, Liang Y, Chen L et al (2003) Effect of fluoride in drinking water on children’s intelligence. Fluoride 36:84–94
2. Petitti DB (1994) Meta-analysis, decision analysis and cost-effectiveness analysis. Methods for quantitative synthesis in medicine. Oxford University Press, New York, pp 90–123
3. Breierova L, Choudhari M (1996) An introduction to sensitivity analysis. MIT, Cambridge, MA, pp 41–107
4. An JA, Mei SZ, Liu AP et al (1992) Effect of high level of fluoride on children’s intelligence. Zhong Guo Di Fang Bing Fang Zhi Za Zhi 7(2):93–94 (in Chinese)
5. Xu YL, Lu CS, Zhang XN (1994) Effect of fluoride on children’s intelligence. Di Fang Bing Tong Bao 9:83–84 (in Chinese)