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Shipp M, Croughan-Minihane MS, Petitti DB, Washington AE.Shipp M, et al. Among authors: petitti db.Am J Public Health. 1992 Mar;82(3):383-90. doi: 10.2105/ajph.82.3.383.Am J Public Health. 1992.PMID: 1536354Free PMC article.