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Johnson GJ, Oken MM, Anderson JR, O'Connell MJ, Glick JH.Johnson GJ, et al. Among authors: oken mm.Lancet. 1984 Sep 22;2(8404):685-7. doi: 10.1016/s0140-6736(84)91235-2.Lancet. 1984.PMID: 6147703Clinical Trial.