title: Retinal degeneration in vitamin B12 disorder associated with methylmalonic aciduria and sulfur amino acid abnormalities.
mesh_terms: D000603:Amino Acids, Sulfur / Q000172:deficiency*; D003540:Cystathionine / Q000652:urine; D006801:Humans; D008314:Malonates / Q000652:urine*; D008764:Methylmalonic Acid / Q000652:urine*; D012162:Retinal Degeneration / Q000378:metabolism*; D014806:Vitamin B 12 Deficiency / Q000378:metabolism*
chemical_list: D000603:Amino Acids, Sulfur; D008314:Malonates; D003540:Cystathionine; D008764:Methylmalonic Acid