Normal host prion protein (PrPC) is required for scrapie spread within the central nervous system
Proceedings of the National Academy of Sciences (1996) - Comment
pubmed: 8917559  doi: 10.1073/pnas.93.23.13148  issn: 0027-8424  issn: 1091-6490 

S. Brandner, A. Raeber, A. Sailer, T. Blättler, M. Fischer, C. Weissmann, A. Aguzzi