Preziuso, S., Taccini, E., Rossi, G., Renzoni, G., & Braca, G. (2009). Experimental Maedi Visna Virus Infection in sheep: a morphological, immunohistochemical and PCR study after three years of infection. European Journal of Histochemistry, 47(4), 373–378. https://doi.org/10.4081/849