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Smith DL, Smith EG, Gumery LB, Stableforth DE, Dalla Costa LM, Pitt TL.Smith DL, et al. Among authors: pitt tl.J Infect. 1993 May;26(3):325-31. doi: 10.1016/0163-4453(93)95709-r.J Infect. 1993.PMID: 8505569