Authors: Loeffen, WLA Kamp, EM Stockhofe-Zurwieden, N van Nieuwstadt, APKMI Bongers, JH Hunneman, WA Elbers, ARW Baars, J Nell, T van Zuderveld, FG

Citation: Wla. Loeffen et al., Survey of infectious agents involved in acute respiratory disease in finishing pigs, VET REC, 145(5), 1999, pp. 123-129