?url_ver=Z39.88-2004&rft_id=10.1371%2Fjournal.pone.0019967&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Si%2C+Y&rft.aulast=Si&rft.aufirst=Y&rft.issue=5&rft.volume=6&rft.date=27+May+2011&rft.atitle=Growth+differentiation+factor+15+is+induced+by+hepatitis+C+virus+infection+and+regulates+hepatocellular+carcinoma-related+genes&rft.title=PLoS+ONE&rft.genre=article