2Allan G M, Eills J A. Porcine circovirus: a review. J Vet Diagn Invest, 2000, 12(1): 3-14.
3Tischer I, Gelderblom H, Vettermann W, et al. A very small porcine virus with circular single-stranded DNA. Nature, 1982, 295(7): 64-66.
4Tischer I, Peters D, Rasch R, et al. Replication of porcine circovirus: induction by glucosamine and cell cycle dependence. Arch Virol, 1987, 96(1-2): 39-57.