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Ungerer RG, Tashkin DP, Furst D, Clements PJ, Gong H Jr, Bein M, Smith JW, Roberts N, Cabeen W.Ungerer RG, et al. Among authors: tashkin dp.Am J Med. 1983 Jul;75(1):65-74. doi: 10.1016/0002-9343(83)91169-5.Am J Med. 1983.PMID: 6859087