Antibodies against Actinobacillus pleuropneumoniae, Mycoplasma hyopneumoniae and influenza virus and their relationships with risk factors, clinical signs and lung lesions in pig farms with one-site production systems in BrazilThaís Gasparini Baraldi, Luís Guilherme de Oliveira, Daniele Araújo Pereira et al.|Preventive Veterinary Medicine|2019Cited by 29