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Zwar N, Wolk J, Gordon J, Sanson-Fisher R, Kehoe L.Zwar N, et al. Among authors: wolk j.Fam Pract. 1999 Oct;16(5):495-500. doi: 10.1093/fampra/16.5.495.Fam Pract. 1999.PMID: 10533946Clinical Trial.
Wolk J, Wodak A, Morlet A, Guinan JJ, Wilson E, Gold J, Cooper DA.Wolk J, et al.AIDS. 1988 Oct;2(5):373-7. doi: 10.1097/00002030-198810000-00007.AIDS. 1988.PMID: 3146266