title: Problems related to the diagnosis of vitamin B12 deficiency optic neuropathy.
authors.affiliation: Department of Ophthalmology, Poznań City Hospital, Poznań, PolandDepartment of Ophthalmology, University of Warmia and Mazury, Olsztyn, Poland.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Grzybowski
mesh_terms: D005189:False Positive Reactions; D006710:Homocysteine / Q000097:blood; D006801:Humans; D008764:Methylmalonic Acid / Q000097:blood; D009901:Optic Nerve Diseases / Q000097:blood / Q000175:diagnosis*; D011237:Predictive Value of Tests; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014805:Vitamin B 12 / Q000097:blood; D014806:Vitamin B 12 Deficiency / Q000097:blood / Q000175:diagnosis*
chemical_list: D006710:Homocysteine; D008764:Methylmalonic Acid; D014805:Vitamin B 12