Proceedings of the International Conference on the Haemophilus, Actinobacillus and Pasteurella (HAP) Group of Organisms. June 1989.
D000189:Actinobacillus Infections / Q000662:veterinary*; D000818:Animals; D006192:Haemophilus Infections / Q000662:veterinary*; D010326:Pasteurella Infections / Q000662:veterinary*