?url_ver=Z39.88-2004&rft_id=10.1111%2Fj.1743-6109.2011.02648.x&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Hart%2C+TA&rft.aulast=Hart&rft.aufirst=TA&rft.issue=4&rft.volume=9&rft.date=1+January+2012&rft.issn=1743-6095&rft.atitle=The+Cumulative+Effects+of+Medication+Use%2C+Drug+Use%2C+and+Smoking+on+Erectile+Dysfunction+Among+Men+Who+Have+Sex+with+Men&rft.title=Journal+of+Sexual+Medicine&rft.pages=1106+-+1113&rft.genre=article