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Abraham E, Wunderink R, Silverman H, Perl TM, Nasraway S, Levy H, Bone R, Wenzel RP, Balk R, Allred R, et al.Abraham E, et al. Among authors: perl tm.JAMA. 1995 Mar 22-29;273(12):934-41.JAMA. 1995.PMID: 7884952Clinical Trial.