Wu, X.-H.; Wang, X.-H.; Utzinger, J.; Yang, K.; Kristensen, T. K.; Bergquist, R.; Zhao, G.-M.; Dang, H.; Zhou, X.-N. Spatio-Temporal Correlation Between Human and Bovine Schistosomiasis in China: Insight from Three National Sampling Surveys. Geospat Health 2007, 2, 75-84.