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

Sundeep. Kalantry, et.al., Evidence of Xist RNA-independent initiation of mouse imprinted X-chromosome inactivation., Nature, 2009, 460
http://rdf.ncbi.nlm.nih.gov/pubmed/19571810