1. National Bureau of Statistics of China. The 2010 statistical report on the national population 2013 [In Chinese]. http://www.stats.gov.cn/tjfx/jdfx/t20110428_402722253.htm . Date last accessed 8 July 2013.
2. Gustafsson BA, Sai D. Temporary and persistent poverty among ethnic minorities and the majority in rural China. Rev Income Wealth. 2009;55(s1):588–606.
3. Le CH, Sheng LY. China’s ethnic statistical yearbook [In Chinese]. Peking: China Statistics Press; 2011.
4. Sheng LY. China statistical yearbook [In Chinese]. Peking: China Statistics Press; 2011.
5. Gray M, Morris AJ, Davies J. The oral health of South Asian five-year-old children in deprived areas of Dudley compared with White children of equal deprivation and fluoridation status. Community Dent Health. 2000;17(4):243–5.