?url_ver=Z39.88-2004&rft_id=PubMed+ID%3A+17264133&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Davies&rft.au=Davies%2C+RJH&rft.aufirst=RJH&rft.date=30+January+2007&rft.atitle=High-resolution+crystal+structure+of+the+intramolecular+d(TpA)+thymine-adenine+photoadduct+and+its+mechanistic+implications&rft.volume=35&rft.issn=0305-1048&rft.pages=1048+-+1053&rft.title=NUCLEIC+ACIDS+RESEARCH&rft.issue=4&rft.genre=article