Binding and entry characteristics of porcine circovirus 2 in cells of the porcine monocytic line 3D4/31., Misinzo, G, Meerts P, Bublot M, Mast Jan, Weingartl H M., and Nauwynck H J. , J Gen Virol, 2005 Jul, Volume 86, Issue Pt 7, p.2057-68, (2005)