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Lynskey MT, Agrawal A, Bucholz KK, Nelson EC, Madden PA, Todorov AA, Grant JD, Martin NG, Heath AC.Lynskey MT, et al. Among authors: madden pa.Twin Res Hum Genet. 2006 Aug;9(4):523-30. doi: 10.1375/183242706778024964.Twin Res Hum Genet. 2006.PMID: 16899159Free article.