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Bryant CA, Farmer A, Tiplady B, Keating J, Sherwood R, Swift CG, Jackson SH.Bryant CA, et al. Among authors: tiplady b.Eur J Clin Pharmacol. 1998 Jun;54(4):309-13. doi: 10.1007/s002280050465.Eur J Clin Pharmacol. 1998.PMID: 9696955Clinical Trial.