Updated clinical diagnostic criteria for sporadic Creutzfeldt-Jakob disease. - Zerr, I.; Kallenberg, K.; Summers, D. M.; Romero, C.; Taratuto, A.; Heinemann, U.; Breithaupt, M.; Varges, D.; Meissner, B.; Ladogana, A.; Schuur, M.; Haik, S.; et al. (Brain: A Journal of Neurology, 2009)