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Duke JM, Boyd JH, Rea S, Randall SM, Wood FM.Duke JM, et al. Among authors: boyd jh.Bull World Health Organ. 2015 Jun 1;93(6):400-6. doi: 10.2471/BLT.14.149146. Epub 2015 Apr 20.Bull World Health Organ. 2015.PMID: 26240461Free PMC article.