Ryan, A. W., Hughes, D. A., Tang, K., Kelleher, D. P., Ryan, T., McManus, R., & Stoneking, M. (2009). Natural selection and the molecular basis of electrophoretic variation at the coagulation F13B locus. European Journal of Human Genetics, 17(2), 219-227. doi:10.1038/ejhg.2008.137.