Hjarvard, B. M., O. N. Larsen, H. R. Juul-Madsen, E. Jørgensen, and K. H. Jensen. “Social Rank Influences the Distribution of Blood Leukocyte Subsets in Female Growing Pigs”. Scandinavian Journal of Laboratory Animal Science, vol. 36, no. 4, Dec. 2009, pp. 309-20, doi:10.23675/sjlas.v36i4.194.