5Kim J, Chae C.Simultaneous detection of porcine circovirus 2 and porcine parvovims in naturally and experimentally coinfected pigs by double in situ hybridization[J]. J Vet Diagn Invest, 2002, 14(3):236- 240.
6Bogdan J ,Wet al. Association of porcine circovirus 2 with repro-ductive failure in pigs:a retrospective study 1995- 1998[J].Cana-dian Veterinary Journal,2001,42 (7):548- 550.
