title: NFS/N-nu/ + mice can macroscopically be distinguished from NFS/N- +/+ littermates by their thymic size and shape.
mesh_terms: D000818:Animals; D006579:Heterozygote; D051379:Mice; D008817:Mice, Mutant Strains / Q000033:anatomy & histology*; D008819:Mice, Nude / Q000033:anatomy & histology*; D010641:Phenotype; D013950:Thymus Gland / Q000033:anatomy & histology*