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Dietz WH Jr, Peralta PH, Johnson KM.Dietz WH Jr, et al. Among authors: johnson km.Am J Trop Med Hyg. 1979 Mar;28(2):329-34. doi: 10.4269/ajtmh.1979.28.329.Am J Trop Med Hyg. 1979.PMID: 222156