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

Sophie. Grimal, et.al., Collagen XXVIII is a distinctive component of the peripheral nervous system nodes of ranvier and surrounds nonmyelinating glial cells., Glia, 2010, 58
http://rdf.ncbi.nlm.nih.gov/pubmed/20830809