Distinct spatial activation of intrinsic and extrinsic apoptosis pathways in natural scrapie: association with prion-related lesions Carmen Serrano, Jaber Lyahyai, Rosa Bolea, Luis Varona, Eva Monleón, Juan J. Badiola, Pilar Zaragoza and Inmaculada Martín-BurrielVet. Res., 40 5 (2009) 42DOI: https://doi.org/10.1051/vetres/2009024