Transmission of blue-eared pig disease.
Robertson
I B
IB
D000818:Animals; D005260:Female; D008297:Male; D012141:Respiratory Tract Infections / Q000635:transmission / Q000662:veterinary*; D012661:Semen / Q000382:microbiology*; D013552:Swine; D013553:Swine Diseases / Q000635:transmission*