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Schmidt CJ, Kehne JH.Schmidt CJ, et al. Among authors: kehne jh.Ann N Y Acad Sci. 1990;600:665-80; discussion 680-1. doi: 10.1111/j.1749-6632.1990.tb16917.x.Ann N Y Acad Sci. 1990.PMID: 1979217Review.No abstract available.