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Park GD, Spector R, Goldberg MJ, Johnson GF.Park GD, et al. Among authors: johnson gf.Arch Intern Med. 1986 May;146(5):969-73.Arch Intern Med. 1986.PMID: 3516107Review.
Goldberg MJ, Spector R, Park GD, Johnson GF, Roberts P.Goldberg MJ, et al. Among authors: johnson gf.Clin Pharmacol Ther. 1987 Jan;41(1):108-11. doi: 10.1038/clpt.1987.18.Clin Pharmacol Ther. 1987.PMID: 3802699Clinical Trial.