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- [3] Boursnell M E, 1989, Prog Vet Microbiol Immunol, V5, P65
- [5] A NOVEL INFECTIOUS-BRONCHITIS STRAIN INFECTING BROILER-CHICKENS IN ITALY [J]. JOURNAL OF VETERINARY MEDICINE SERIES B-ZENTRALBLATT FUR VETERINARMEDIZIN REIHE B-INFECTIOUS DISEASES AND VETERINARY PUBLIC HEALTH, 1994, 41 (02): : 83 - 89
- [7] Cunningham C H, 1970, Adv Vet Sci Comp Med, V14, P105