?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=C&rft.au=Stansfield%2C+C&rft.aulast=Stansfield&rft.atitle=Text+mining+for+search+term+development+in+systematic+reviewing%3A+A+discussion+of+some+methods+and+challenges&rft.volume=8&rft.date=September+2017&rft.pages=355-365&rft.issn=1759-2887&rft.title=Reseach+Synthesis+Methods&rft.issue=3&rft.genre=article