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Contini S, Swarray-Deen A, Scarpignato C.Contini S, et al. Among authors: scarpignato c.Bull World Health Organ. 2009 Dec;87(12):950-4. doi: 10.2471/BLT.08.058065.Bull World Health Organ. 2009.PMID: 20454486Free PMC article.Review.