Lopman, B. A., V. E. Pitzer, R. Sarkar, B. Gladstone, M. Patel, J. Glasser, M. Gambhir, C. Atchison, B. T. Grenfell, W. J. Edmunds, G. Kang, and U. D. Parashar. 2012. Understanding reduced rotavirus vaccine efficacy in low socio-economic settings. PLoS One 7:e41720.