?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Kortenkamp&rft.au=Kortenkamp%2C+A&rft.aufirst=A&rft.atitle=Introduction%3A+Endocrine+Disruptors-Exposure+Assessment%2C+Novel+End+Points%2C+and+Low-Dose+and+Mixture+Effects&rft.volume=115&rft.date=2007&rft.issue=S1&rft.title=Environmental+Health+Perspectives&rft.pages=7&rft.issn=1552-9924&rft.genre=article