Atrophic rhinitis: significance of nasal measurements in specific-pathogen-free (SPF) swine herds.
D000818:Animals; D005856:Germ-Free Life; D009666:Nose / Q000033:anatomy & histology*; D012222:Rhinitis, Atrophic / Q000175:diagnosis / Q000662:veterinary*; D013047:Specific Pathogen-Free Organisms; D013552:Swine / Q000033:anatomy & histology*; D013553:Swine Diseases / Q000175:diagnosis*