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

Yang. Bi, et.al., Wnt antagonist SFRP3 inhibits the differentiation of mouse hepatic progenitor cells., Journal of cellular biochemistry, 2009, 108
http://rdf.ncbi.nlm.nih.gov/pubmed/19562671