?url_ver=Z39.88-2004&rft_id=10.1001%2Fjamainternmed.2013.11362&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Than&rft.aufirst=Martin&rft.au=Than%2C+Martin&rft.title=JAMA+Internal+Medicine&rft.date=2014&rft.issn=2168-6106&rft.atitle=A+2-hour+diagnostic+protocol+for+possible+cardiac+chest+pain+in+the+emergency+department%3A+a+randomized+clinical+trial&rft.volume=174&rft.issue=1&rft.genre=article