?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Shah&rft.au=Shah%2C+AD&rft.aufirst=AD&rft.atitle=Threshold+Haemoglobin+Levels+and+the+Prognosis+of+Stable+Coronary+Disease%3A+Two+New+Cohorts+and+a+Systematic+Review+and+Meta-Analysis&rft.issue=5&rft.date=31+May+2011&rft.pages=-&rft.title=PLoS+Medicine&rft.issn=1549-1277&rft.volume=8&rft.genre=article