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Gralla RJ, Tyson LB, Kris MG, Clark RA.Gralla RJ, et al. Among authors: clark ra.Med Clin North Am. 1987 Mar;71(2):289-301. doi: 10.1016/s0025-7125(16)30871-9.Med Clin North Am. 1987.PMID: 3546981Review.