_:vb50939297 "url:https://www.ncbi.nlm.nih.gov/pubmed/12471062"^^ . _:vb50939297 . _:vb50939297 . _:vb50939297 . _:vb50939297 "A methylmalonic acidemia characterized by autosomal recessive inheritance, defects in the synthesis of AdoCbl, vitamin B12 therapy responsiveness and that has_material_basis_in homozygous or compound heterozygous mutation in the MMAB gene on chromosome 12q24."^^ . _:vb50939297 . _:vb50939297 . _:vb50939297 "url:https://www.ncbi.nlm.nih.gov/pubmed/7213387"^^ .