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Snadden D, Brown JB.Snadden D, et al. Among authors: brown jb.Fam Pract. 1991 Dec;8(4):329-35. doi: 10.1093/fampra/8.4.329.Fam Pract. 1991.PMID: 1800195
Brown JB, Dickie I, Brown L, Biehn J.Brown JB, et al. Among authors: brown l.Can Fam Physician. 1997 May;43:901-6.Can Fam Physician. 1997.PMID: 9154362Free PMC article.