Cortey, M., S. Napp, A. Alba, E. Pileri, L. Grau-Roma, M. Sibila and J. Segalés. 2011. Theoretical and experimental approaches to estimate the usefulness of pooled serum samples for the diagnosis of postweaning multisystemic wasting syndrome. Journal of Veterinary Diagnostic Investigation, 23 (2): 233-240. doi: 10.1177/104063871102300206