Pennish, E. 2003. Cannibalism and prion disease may have been rampant in ancient humans. Science 300: 227–228.
94
Mead, S. et al. 2003. Balancing Selection at the Prion Protein Gene Consistent with Prehistoric Kurulike Epidemics. Science 300: 640–643.
95
Anonymous., 2004. Autism: making the connection. The Economist, 372(8387): 66.
96
Baiter, M. 2002. What made Humans modern? Science 295: 1219–1225.
97
Bianco-Arias, P., C. A. Sargent, and N. A. Affaral. 2004. A comparative analysis of the pig, mouse, and human PCDHX genes. Mammalian Genome, 15(4): 296–306.