Brain Transcriptome Database (BrainTx)http://rdf.ncbi.nlm.nih.gov/pubmed/

E. Di Pietro, et.al., Mitochondrial NAD-dependent methylenetetrahydrofolate dehydrogenase-methenyltetrahydrofolate cyclohydrolase is essential for embryonic development., Molecular and cellular biology, 2002, 22
http://rdf.ncbi.nlm.nih.gov/pubmed/12024029