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

Andreas. Holz, et.al., The transcription factors Nkx2.2 and Nkx2.9 play a novel role in floor plate development and commissural axon guidance., Development (Cambridge, England), 2010, 137
http://rdf.ncbi.nlm.nih.gov/pubmed/21068056