Johnson, A. D., Handsaker, R. E., Pulit, S. L., Nizzari, M. M., O'Donnell, C. J., & de Bakker, P. I. W. (2008). SNAP: A web-based tool for identification and annotation of proxy SNPs using HapMap. Oxford University Press.

Johnson, Andrew D., Robert E. Handsaker, Sara L. Pulit, Marcia M. Nizzari, Christopher J. O'Donnell, and Paul I. W. de Bakker. SNAP: A Web-based Tool for Identification and Annotation of Proxy SNPs Using HapMap. Oxford University Press, 2008.

Johnson, Andrew D., et al. SNAP: A Web-based Tool for Identification and Annotation of Proxy SNPs Using HapMap. Oxford University Press, 2008.