3Hulsen J.Mycoplasma and PRDC.Seminar working group medicine of the pig in cooperation with Boehringer Ingelheim[J].Tijdschr Diergeneeskd,2002,127(23):731-732.
4OPILIESSNIG T,THACKER EL,Y U S,et al.Experimental reproduction of postweaning multisystemic wasting syndrome in pigs by dual infection with Mycoplasma hyopneumoniae and porcine circovirus type 2[J].Vet Pathol,2004,41:624-640.