title: Critical neurohistopathologic evaluation of adult specific-pathogen-free (SPF) single-comb White Leghorn hens.
mesh_terms: D000818:Animals; D002645:Chickens / Q000033:anatomy & histology*; D005260:Female; D005856:Germ-Free Life; D009410:Nerve Degeneration; D009420:Nervous System / Q000473:pathology*; D013047:Specific Pathogen-Free Organisms