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Bowen A, Williams M, Horvath K.Bowen A, et al.AIDS Behav. 2004 Sep;8(3):311-9. doi: 10.1023/B:AIBE.0000044078.43476.1f.AIDS Behav. 2004.PMID: 15475678Free PMC article.
Kodatt SA, Shenk JE, Williams ML, Horvath KJ.Kodatt SA, et al. Among authors: williams ml.Sex Relation Ther. 2014 Nov 1;29(4):467-475. doi: 10.1080/14681994.2014.941346.Sex Relation Ther. 2014.PMID: 25642144Free PMC article.
Nilsson Schönnesson L, Williams ML, Ross MW, Bratt G, Keel B.Nilsson Schönnesson L, et al. Among authors: williams ml.AIDS Behav. 2007 Mar;11(2):175-83. doi: 10.1007/s10461-006-9160-0.AIDS Behav. 2007.PMID: 16927178
Crisp BR, Williams M, Timpson S, Ross MW.Crisp BR, et al.AIDS Behav. 2004 Jun;8(2):199-206. doi: 10.1023/B:AIBE.0000030250.33931.af.AIDS Behav. 2004.PMID: 15187481