title: Low-penetrance branches in matrilineal pedigrees with Leber hereditary optic neuropathy.
authors.forename: N
authors.initials: N
authors.lastname: Howell
authors.forename: D A
authors.initials: DA
authors.lastname: Mackey
mesh_terms: D005111:Extrachromosomal Inheritance; D005260:Female; D006579:Heterozygote; D006801:Humans; D008297:Male; D008957:Models, Genetic; D009035:Mothers; D009154:Mutation; D015418:Optic Atrophies, Hereditary / Q000235:genetics*; D010375:Pedigree; D019683:Penetrance; D012737:Sex Factors