Luo, R., L. Zhang, C. Liu, Q. Zhao, Y. Shi, G. Miller, E. Yu, B. Sharbono, A. Medina, S. Rozelle, and R. Martorell. “Anaemia Among Students of Rural China’s Elementary Schools: Prevalence and Correlates in Ningxia and Qinghai’s Poor Counties”. Journal of Health, Population and Nutrition, vol. 29, no. 5, Nov. 2011, pp. 471-85, doi:10.3329/jhpn.v29i5.8901.