[Trends in research work on the infectious diseases of agricultural animals].
D000820:Animal Diseases / Q000453:epidemiology / Q000382:microbiology; D000818:Animals; D000829:Animals, Domestic; D002031:Bulgaria; D003141:Communicable Diseases / Q000453:epidemiology / Q000382:microbiology / Q000662:veterinary*; D012106:Research
Nasoki na nauchnoizsledovatelskata rabota po zarazni bolesti po selskostopanskite zhivotni.